Oil mist filtering device of lubricating oil tank

Abstract

The utility model discloses an oil mist filtering device of a lubricating oil tank, and belongs to the technical field of oil mist filtering devices. Comprising a lubricating oil tank and a filter tank, the filter tank is arranged above the lubricating oil tank, an air guide opening is formed in the upper end of the lubricating oil tank and located in one side of the filter tank, and an air suction pipe is arranged on one side of the filter tank. The oil mist filtering device solves the problems that an oil mist filter of an oil mist filtering device in the prior art has a common filtering effect on oil mist, so that when oil recycled into a lubricating oil tank is used, a breather pipe is blocked, and a working place is polluted, and through the arrangement of a primary filter screen, an oil mist filter screen and filter cotton, the oil mist filtering effect is greatly improved. According to the oil mist filtering device, the oil mist is filtered after being pre-filtered, then exhausted air is purified, pollution to the air is further reduced, the filtering effect is good, oil is conveniently discharged by vibrating the oil mist filtering net, and the situation that the surface of the oil mist filtering net is covered with an oil film, so that blocking is caused, and filtering is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil mist filtering devices, in particular to an oil mist filtering device for a lubricating oil tank. Background Art

[0002] Oil mist generally refers to dust-like or droplet-like pollutants generated during industrial processing. Generally, the cause of oil mist is the use of metalworking lubricants during processing, where the metalworking lubricants undergo high-speed cutting, impact, jet or high-temperature evaporation of the tool to produce oil mist. The size range of particles in the generated oil mist varies greatly. If the oil mist is not handled in time and is directly discharged into the air, it will cause great harm to the health of the workers working in the workshop;

[0003] A Chinese patent with publication number CN205155534U discloses an oil mist filter for a lubricating oil tank: the patent prevents the oil mist from being directly discharged into the air compressor housing through the oil return pipe by injecting a proper amount of lubricating oil into the U-shaped pipe with an inverted S-shaped bend on the oil return pipe.

[0004] However, although the above technology solves the problem of general sealing effect of the oil return pipe, it still has the following defects:

[0005] The oil mist filter of the existing oil mist filtering device has a general filtering effect on the oil mist, resulting in that the oil recovered into the lubricating oil tank will not only cause the blockage of the ventilation pipe when in use, but also pollute the workplace. Utility Model Content

[0006] The utility model aims to provide an oil mist filter device for a lubricating oil tank. By arranging a primary filter screen, an oil mist filter screen and filter cotton, the oil mist is pre-filtered and then filtered, and then the exhausted air is purified, thereby further reducing the pollution to the air and achieving good filtering effect. By vibrating the oil mist filter screen, oil discharge is facilitated, and blockage caused by the oil film covering the surface of the oil mist filter screen is avoided, thereby affecting the filtering, thereby solving the problems in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil mist filtering device for a lubricating oil box, comprising a lubricating oil box and a filter box, a filter box is arranged above the lubricating oil box, an air guide port is arranged at the upper end of the lubricating oil box, and the air guide port is located on one side of the filter box, an air suction pipe is arranged on one side of the filter box, the air suction pipe and the air guide port are connected by a flange, an exhaust pipe is arranged at the upper end of the filter box, an air suction pump is installed on the exhaust pipe, and an oil mist filter is arranged inside the filter box.

[0008] Preferably, a collecting tank is provided on one side of the oil mist filter close to the air suction pipe, and an induced draft fan is provided on the other side of the oil mist filter, and the induced draft fan is installed on the inner wall of the filter box.

[0009] Preferably, a sealing door is rotatably provided at the front end of the filter box.

[0010] Preferably, one end of the air suction pipe extends to the inner thread of the filter box and is connected to a filter cover, and a primary filter screen is arranged inside the filter cover.

[0011] Preferably, a vibrator is provided on the side wall of the oil mist filter, and sliders are provided at the upper end and the lower end of the oil mist filter, and the sliders are slidably connected to the filter box through limiting slide grooves.

[0012] Preferably, one side of the sliding block is fixedly connected to the filter box via a return spring.

[0013] Preferably, a perforated plate is provided inside the collecting tank.

[0014] Preferably, filter cotton is arranged inside the exhaust pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model is an oil mist filter device for a lubricating oil tank. Through the arrangement of a primary filter, an oil mist filter and filter cotton, the oil mist is pre-filtered and then filtered. The oil mist filter is tilted, which can not only filter out solid impurities, but also block and isolate liquids to separate solids and liquids. Finally, the exhausted air is purified to further reduce the pollution to the air. The filtering effect is good. By vibrating the oil mist filter, oil discharge is convenient, and the oil film covering the surface of the oil mist filter is prevented from causing blockage and affecting the filtering.

[0017] 2. The utility model provides an oil mist filter device for a lubricating oil tank, wherein the primary filter and the filter cover are an integrated structure, and the filter cover can be disassembled by adopting a threaded connection to facilitate cleaning of the primary filter, and a sealing door is provided to facilitate removal of the filter assembly and the collection tank in the filter box for cleaning and maintenance, and the liquid enters the collection tank through the through holes on the orifice plate, which is convenient for liquid recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the filter box of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the collecting tank of the utility model;

[0021] Figure 4 This is an axonometric view of the filter cover of the utility model;

[0022] Figure 5 This is a schematic diagram of the slider structure of the utility model.

[0023] In the figure: 1. Lubricating oil tank; 2. Filter box; 3. Suction pipe; 4. Suction pump; 5. Oil mist filter; 6. Collecting tank; 7. Draft fan; 8. Exhaust pipe; 101. Air guide port; 201. Sealing door; 301. Filter cover; 302. Primary filter; 501. Vibrator; 502. Limiting slide; 503. Sliding block; 504. Return spring; 601. Orifice plate; 801. Filter cotton. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to solve the technical problem that the oil mist filter of the oil mist filter device in the prior art has a poor filtering effect on the oil mist, resulting in the oil recovered into the lubricating oil tank not only causing the blockage of the ventilation pipe when in use, but also polluting the workplace, please refer to Figure 1-5 , providing the following technical solutions:

[0026] In the present embodiment, an oil mist filtering device for a lubricating oil box comprises a lubricating oil box 1 and a filter box 2. A filter box 2 is arranged above the lubricating oil box 1 for oil mist filtering treatment. A sealing door 201 is rotatably arranged at the front end of the filter box 2 to facilitate taking out the filter assembly and the collecting tank 6 in the filter box 2 for cleaning and maintenance. An air guide port 101 is arranged at the upper end of the lubricating oil box 1, and the air guide port 101 is located at one side of the filter box 2. An air suction pipe 3 is arranged on one side of the filter box 2. The air suction pipe 3 is connected to the air guide port 101 through a flange, so that the oil mist in the lubricating oil box 1 can be introduced into the filter box 2 for filtering. An exhaust pipe 8 is arranged at the upper end of the filter box 2, and an air suction pump 4 is installed on the exhaust pipe 8. By starting the air suction pump 4, the filtered air can be sucked out through the exhaust pipe 8. An oil mist filter 5 is arranged inside the filter box 2 for filtering the oil mist.

[0027] In this embodiment, a collecting tank 6 is provided on one side of the oil mist filter 5 close to the air suction pipe 3, and an induced draft fan 7 is provided on the other side of the oil mist filter 5, and the induced draft fan 7 is installed on the inner wall of the filter box 2. By starting the induced draft fan 7, the oil mist contacts the oil mist filter 5 under the action of suction. The oil mist filter 5 is inclined, which can not only filter out solid impurities, but also block and isolate the liquid, so that the liquid can fall into the collecting tank 6.

[0028] In this embodiment, one end of the suction pipe 3 extends to the internal thread of the filter box 2 and is connected to a filter cover 301. A primary filter 302 is arranged inside the filter cover 301. When the oil mist enters the filter box 2 from the suction pipe 3, the primary filter 302 can pre-filter the oil mist. The primary filter 302 is a metal mesh. The primary filter 302 and the filter cover 301 are an integrated structure. The filter cover 301 can be disassembled by adopting a threaded connection to clean the primary filter 302.

[0029] In this embodiment, a vibrator 501 is provided on the side wall of the oil mist filter 5, and sliders 503 are provided on the upper and lower ends of the oil mist filter 5. The slider 503 is slidably connected to the filter box 2 through a limiting slide groove 502, and one side of the slider 503 is fixedly connected to the filter box 2 through a reset spring 504. By starting the vibrator 501, the oil mist filter 5 can be vibrated to facilitate oil discharge and avoid oil film covering the surface of the oil mist filter 5 to cause blockage and affect filtration. The oil mist filter 5 reciprocates under the expansion and contraction of the reset spring 504, and the cooperation of the slider 503 and the limiting slide groove 502 facilitates the stable sliding of the oil mist filter 5.

[0030] In this embodiment, a perforated plate 601 is provided inside the collecting tank 6, and the liquid enters the collecting tank 6 through the through holes on the perforated plate 601, so as to facilitate the recovery of the liquid.

[0031] In this embodiment, a filter cotton 801 is arranged inside the exhaust pipe 8. The filter cotton 801 is made of non-woven fabric and can purify the air discharged from the exhaust pipe 8 to further reduce the pollution caused to the air.

[0032] Working principle: When in use, by starting the induced draft fan 7, the oil mist in the lubricating oil tank 1 can be introduced into the filter box 2 through the suction pipe 3 for filtration, and the primary filter 302 can pre-filter the oil mist. Then, the oil mist contacts the oil mist filter 5 under the suction action. The oil mist filter 5 is tilted, which can not only filter out solid impurities, but also block and isolate the liquid so that the liquid can fall into the collection tank 6. By starting the vibrator 501, the oil mist filter 5 can be vibrated, so that the oil mist filter 5 reciprocates under the expansion and contraction of the reset spring 504. By starting the suction pump 4, the filtered air can be sucked out through the exhaust pipe 8. The filter cotton 801 is made of non-woven fabric, which can purify the air discharged from the exhaust pipe 8, further reducing the pollution to the air. The sealing door 201 is convenient for taking out the filter assembly and the collection tank 6 in the filter box 2 for cleaning and maintenance.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil mist filter device for a lubricating oil tank, comprising a lubricating oil tank (1) and a filter box (2), characterized in that: A filter box (2) is arranged above the lubricating oil box (1), an air guide port (101) is arranged at the upper end of the lubricating oil box (1), and the air guide port (101) is located on one side of the filter box (2), an air suction pipe (3) is arranged on one side of the filter box (2), the air suction pipe (3) and the air guide port (101) are connected via a flange, one end of the air suction pipe (3) extends to the inside of the filter box (2) and is threadedly connected to a filter cover (301), and a primary filter screen ( 302); an exhaust pipe (8) is arranged at the upper end of the filter box (2), and filter cotton (801) is arranged inside the exhaust pipe (8); an air suction pump (4) is installed on the exhaust pipe (8), an oil mist filter (5) is arranged inside the filter box (2), a vibrator (501) is arranged on the side wall of the oil mist filter (5), and sliders (503) are arranged at the upper and lower ends of the oil mist filter (5), and the slider (503) is slidably connected to the filter box (2) through a limiting slide groove (502).

2. The oil mist filter device for a lubricating oil tank according to claim 1, characterized in that: A collecting trough (6) is provided on one side of the oil mist filter (5) close to the air suction pipe (3), and an induced draft fan (7) is provided on the other side of the oil mist filter (5), and the induced draft fan (7) is installed on the inner wall of the filter box (2).

3. The oil mist filter device for a lubricating oil tank according to claim 1, characterized in that: A sealing door (201) is rotatably provided at the front end of the filter box (2).

4. The oil mist filter device for a lubricating oil tank according to claim 1, characterized in that: One side of the sliding block (503) is fixedly connected to the filter box (2) via a return spring (504).

5. The oil mist filter device for a lubricating oil tank according to claim 2, characterized in that: A perforated plate (601) is provided inside the collecting tank (6).

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