Minimum lubrication pneumatic pump device

Abstract

The utility model discloses a minimum quantity lubrication pneumatic pump device which structurally comprises an oil tank, and the top of the oil tank is detachably connected with a cover plate through bolts. The main body assembly comprises a small pneumatic pump, an air pressure adjusting valve, an air filter, a liquid level meter and a flow divider, the small pneumatic pump is installed at the bottom of the air filter, and the air filter, the liquid level meter and the flow divider are all installed on the cover plate; and the filtering assembly comprises a filtering box. When the oil filter is used, the oil pipe on the small pneumatic pump is connected with the flow divider, lubricating oil is conveyed to a lubricating point through the small pneumatic pump, backflow waste oil is led into the filter box through the backflow pipe connector, solid impurities in the waste oil are filtered out through the filter screen, then the waste oil flows downwards to the paper filter element, and the waste oil is filtered out through the water absorption performance of the paper filter element. A trace amount of water in the oil can be removed, so that the filtering effect of the device is better, and oil drops subjected to double-layer filtering flow into the oil tank through the recovery pipe to be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-lubrication, in particular to a micro-lubrication pneumatic pump device. Background Art

[0002] Minimum quantity lubrication is an efficient and environmentally friendly lubrication technology, which is usually used in metal cutting and other processing processes. Minimum quantity lubrication is a technology that mixes a very small amount of lubricating oil with compressed gas (such as air, nitrogen, carbon dioxide, etc.) to form an oil mist containing micron-sized droplets, and then sprays it at high speed to the cutting area or moving pair through a nozzle. The minimum quantity lubrication pneumatic pump device is a system for accurately controlling and delivering trace amounts of lubricating oil. It is usually used in mechanical parts that require fine lubrication, such as bearings, gears, etc. Since the lubricant is supplied in trace amounts, the risk of contamination and failure caused by overlubrication can be reduced.

[0003] However, although the lubricating oil is delivered and used in a quantitative and precise manner, a small amount of residual lubricating oil is inevitable. The current traditional micro-lubrication pneumatic pump device lacks an oil return structure, making it difficult to collect and filter this small amount of returned oil for reuse. In addition, the filter of the oil return structure may have residual oil stains condensed due to long-term filtering of the lubricating oil, so the filter needs to be cleaned and replaced frequently. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, in order to solve the above technical problems, the utility model provides the following technical solutions: a micro-lubrication pneumatic pump device, the micro-lubrication pneumatic pump device comprising:

[0006] An oil tank, the top of which is detachably connected to a cover plate by bolts;

[0007] The main body assembly includes a small pneumatic pump, an air pressure regulating valve, an air filter, a liquid level gauge and a flow divider, wherein the small pneumatic pump is installed at the bottom of the air filter, and the air filter, the liquid level gauge and the flow divider are all installed on the cover plate;

[0008] The filter assembly includes a filter box, which is fixedly installed on one side of the oil tank. A groove is opened on the inner wall of the filter box. A spring is arranged in the groove. A clamp is fixedly connected to one end of the spring. A filter screen is detachably connected to the surface of the clamp. A paper filter element is detachably connected to the bottom of the filter screen.

[0009] As a preferred solution of the micro-lubrication pneumatic pump device of the utility model, the cover plate is also provided with a refueling port, a thread groove is provided on the surface of the refueling port, and a sealing cover is threadedly connected in the thread groove.

[0010] As a preferred solution of the minimal lubrication pneumatic pump device of the utility model, the surface of the air filter is connected to one side of the air pressure regulating valve through an air delivery pipe, and an air inlet is provided on the other side of the air pressure regulating valve.

[0011] As a preferred solution of the minimal lubrication pneumatic pump device of the utility model, wherein: an oil injection pipe joint is arranged on the flow divider, and a first solenoid valve is arranged on the oil injection pipe joint.

[0012] As a preferred solution of the micro-lubrication pneumatic pump device of the utility model, a return pipe joint is installed on the top of the filter box, and a second solenoid valve is arranged on the return pipe joint.

[0013] As a preferred solution of the micro-lubrication pneumatic pump device of the utility model, a recovery pipe is arranged at the bottom of the filter box, an annular aggregation block is arranged on the inner top wall of the filter box, and a sealing door is arranged on the front of the filter box.

[0014] Beneficial effects of the utility model:

[0015] When in use, the oil pipe on the small pneumatic pump is connected to the diverter, the lubricating oil is transported to the lubrication point through the small pneumatic pump, and the refluxed waste oil is introduced into the filter box through the reflux pipe joint, and the solid impurities therein are filtered out through the filter screen and then flow down to the paper filter element. The water absorption performance of the paper filter element can remove trace moisture in the oil, thereby making the filtering effect of the device better, and the oil droplets after double-layer filtration flow into the oil tank through the recovery pipe for reuse; the sealing door is opened, and the clamping block is driven to move by the elasticity of the spring, so that the filter screen and the paper filter element can be quickly disassembled and assembled, thereby facilitating the recovery and reuse of a small amount of trace waste oil, thereby reducing the consumption of lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the micro-lubrication pneumatic pump device of the utility model.

[0018] Figure 2It is a structural schematic diagram of the cover plate of the micro-lubrication pneumatic pump device of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the filter assembly of the micro-lubrication pneumatic pump device of the utility model.

[0020] Figure 4 It is a schematic diagram of the overall transverse cross-sectional structure of the micro-lubrication pneumatic pump device of the utility model.

[0021] Figure 5 It is a schematic diagram of the longitudinal cross-sectional structure of the entire micro-lubrication pneumatic pump device of the utility model.

[0022] In the figure: 100, fuel tank; 101, cover plate; 1011, fuel filler port; 1012, sealing cover;

[0023] 200, main assembly; 201, small pneumatic pump; 202, air pressure regulating valve; 2021, air delivery pipe; 2022, air inlet; 203, air filter; 204, liquid level gauge; 205, flow divider; 2051, fuel injection pipe joint; 2052, first solenoid valve;

[0024] 300, filter assembly; 301, filter box; 3011, return pipe joint; 3012, second solenoid valve; 3013, recovery pipe; 3014, annular aggregation block; 3015, sealing door; 302, spring; 303, clamping block; 304, filter screen; 305, paper filter element. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figure 1 -5, is the first embodiment of the utility model, which provides a micro-lubrication pneumatic pump device, the structure of which includes:

[0031] The oil tank 100 has a cover plate 101 detachably connected to the top of the oil tank 100 by bolts, which facilitates the disassembly of the cover plate 101 and the oil tank 100, thereby facilitating the inspection and maintenance of the main assembly 200 and the cleaning of the oil tank 100;

[0032] The main body component 200 includes a small pneumatic pump 201, an air pressure regulating valve 202, an air filter 203, a liquid level meter 204 and a flow divider 205. The small pneumatic pump 201 is installed at the bottom of the air filter 203. The air filter 203, the liquid level meter 204 and the flow divider 205 are all installed on the cover plate 101. During use, air enters the air pressure regulating valve 202 through the air inlet 2022, the air pressure is adjusted by the air pressure regulating valve 202, and then the air is transmitted to the air filter 203 through the air delivery pipe 2021 to filter impurities in the air. The amount of lubricant is accurately measured and distributed through the liquid level meter 204, and the oil pipe on the small pneumatic pump 201 is connected to the flow divider 205, and the lubricating oil is delivered to the lubrication point through the small pneumatic pump 201;

[0033] The filter assembly 300 includes a filter box 301, which is fixedly installed on one side of the oil tank 100. The inner wall of the filter box 301 is provided with a groove, and a spring 302 is arranged in the groove. One end of the spring 302 is fixedly connected to a clamp block 303, and a filter screen 304 is detachably connected to the surface of the clamp block 303. A paper filter element 305 is detachably connected to the bottom of the filter screen 304. During use, the reflux waste oil is introduced into the filter box 301 through the reflux pipe joint 3011, and the waste oil passes through the filter screen 303. 04 After filtering the solid impurities, it flows down to the paper filter element 305. The water absorption performance of the paper filter element 305 can remove trace moisture in the oil. The oil droplets after double-layer filtration flow into the oil tank 100 through the recovery pipe 3013 for reuse. The sealing door 3015 is opened, the used filter screen 304 and the multi-layer paper filter element 305 are taken out, and the new filter screen 304 and the paper filter element 305 are placed between the clamping block 303, and the elasticity of the spring 302 drives the clamping block 303 to clamp and fix them.

[0034] Furthermore, a refueling port 1011 is provided on the cover plate 101, and a threaded groove is provided on the surface of the refueling port 1011, and a sealing cover 1012 is threadedly connected in the threaded groove. The refueling port 1011 can be exposed by loosening the sealing cover 1012, and the lubricating oil can be conveniently added to the oil tank 100 through the refueling port 1011.

[0035] Furthermore, the surface of the air filter 203 is connected to one side of the air pressure regulating valve 202 through an air delivery pipe 2021, and an air inlet 2022 is provided on the other side of the air pressure regulating valve 202. Air enters the air pressure regulating valve 202 through the air inlet 2022 and is then transmitted to the air filter 203 through the air delivery pipe 2021.

[0036] Furthermore, the diverter 205 is provided with an injection pipe joint 2051 , and the injection pipe joint 2051 is provided with a first solenoid valve 2052 , so that the opening or closing of the injection can be conveniently controlled by the first solenoid valve 2052 .

[0037] Furthermore, a reflux pipe joint 3011 is installed on the top of the filter box 301 , and a second solenoid valve 3012 is provided on the reflux pipe joint 3011 . The second solenoid valve 3012 is used to conveniently control the recovery of the waste oil refluxed in the reflux pipe joint 3011 .

[0038] Furthermore, a recovery pipe 3013 is provided at the bottom of the filter box 301, an annular gathering block 3014 is provided on the inner top wall of the filter box 301, and a sealing door 3015 is provided on the front of the filter box 301. The oil droplets dripping from the return pipe joint 3011 are gathered by the annular gathering block 3014 to facilitate their dripping onto the filter screen 304. Opening the sealing door 3015 facilitates the replacement of the filter screen 304 and the paper filter element 305.

[0039] During use, air first enters the air pressure regulating valve 202 through the air inlet 2022, the air pressure is adjusted by the air pressure regulating valve 202, and then the air is transmitted to the air filter 203 through the air delivery pipe 2021 to filter impurities in the air, the amount of lubricant is accurately measured and distributed through the level meter 204, and the oil pipe on the small pneumatic pump 201 is connected to the diverter 205, and the lubricating oil is delivered to the lubrication point through the small pneumatic pump 201;

[0040] Then, the refluxed waste oil is introduced into the filter box 301 through the reflux pipe joint 3011, and the solid impurities therein are filtered out through the filter screen 304, and then flow down to the paper filter element 305. The water absorption performance of the paper filter element 305 can remove trace amounts of water in the oil, and the oil droplets after double-layer filtration flow into the oil tank 100 through the recovery pipe 3013 for reuse;

[0041] Finally, the sealing door 3015 is opened, the used filter screen 304 and the multi-layer paper filter element 305 are taken out, and the new filter screen 304 and the paper filter element 305 are placed between the clamping blocks 303, and the clamping blocks 303 are clamped and fixed by the elasticity of the spring 302, thereby facilitating the recycling and reuse of a small amount of waste oil, thereby reducing the consumption of lubricating oil.

[0042] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A micro-lubrication pneumatic pump device, characterized in that: include, An oil tank (100), wherein a cover plate (101) is detachably connected to the top of the oil tank (100) via bolts; A main body component (200) comprises a small pneumatic pump (201), an air pressure regulating valve (202), an air filter (203), a liquid level meter (204) and a flow divider (205), wherein the small pneumatic pump (201) is mounted on the bottom of the air filter (203), and the air filter (203), the liquid level meter (204) and the flow divider (205) are all mounted on the cover plate (101); The filter assembly (300) comprises a filter box (301), wherein the filter box (301) is fixedly mounted on one side of the oil tank (100), wherein a groove is provided on the inner wall of the filter box (301), wherein a spring (302) is arranged in the groove, wherein one end of the spring (302) is fixedly connected to a clamping block (303), wherein a filter screen (304) is detachably connected to the surface of the clamping block (303), and a paper filter element (305) is detachably connected to the bottom of the filter screen (304).

2. The minimal lubrication pneumatic pump device according to claim 1, characterized in that: The cover plate (101) is also provided with a refueling port (1011), a thread groove is provided on the surface of the refueling port (1011), and a sealing cover (1012) is threadedly connected in the thread groove.

3. The minimal lubrication pneumatic pump device according to claim 1, characterized in that: The surface of the air filter (203) is connected to one side of the air pressure regulating valve (202) via an air delivery pipe (2021), and the other side of the air pressure regulating valve (202) is provided with an air inlet (2022).

4. The minimal lubrication pneumatic pump device according to claim 1, characterized in that: The flow divider (205) is provided with an oil injection pipe joint (2051), and the oil injection pipe joint (2051) is provided with a first solenoid valve (2052).

5. The minimal lubrication pneumatic pump device according to claim 1, characterized in that: A return pipe joint (3011) is installed on the top of the filter box (301), and a second solenoid valve (3012) is provided on the return pipe joint (3011).

6. The minimal lubrication pneumatic pump device according to claim 1, characterized in that: The bottom of the filter box (301) is provided with a recovery pipe (3013), the inner top wall of the filter box (301) is provided with an annular aggregation block (3014), and the front of the filter box (301) is provided with a sealing door (3015).

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