A minimal lubrication device capable of separating oil and mist

Abstract

The present invention discloses a minimal lubrication device capable of separating oil and aerosol, comprising a housing, an air filter, an aerosol can, an intermediate relay, a buzzer, a power switch, a solenoid valve, a pressure regulating valve I, a pressure regulating valve II, a reversing valve I, a reversing valve II, a pneumatic ball valve I, and a pneumatic ball valve II; the aerosol can also include a tank body, a spray nozzle, a liquid level sensor, a safety valve, an air supply connector, two aerosol output pipes, an oil supply structure, and an oil-gas separation structure. By providing a separation structure, the present invention filters the lubricating oil entering the aerosol can through a filter cartridge and then inputs it into the oil inlet of the spray nozzle. At the same time, the larger oil mist particles sprayed into the upper portion of the aerosol can by the spray nozzle are condensed into oil droplets through a separation net and then enter the oil liquid at the lower end, so that the upper space of the separation net only stores the required micron-sized aerosol particles.

Description

Technical Field

[0001] The invention relates to the technical field of minimal lubrication processing, in particular to a minimal lubrication device capable of separating oil and aerosol. Background Art

[0002] Minimum Quantity Lubricant (MQL) cutting technology is a new type of lubrication in metalworking, also known as semi-dry cutting. It involves mixing compressed gas with a very small amount of cutting oil, vaporizing it, and then spraying it at high speed onto the cutting zone, effectively lubricating the area between the tool and the workpiece. MQL significantly reduces friction between the tool and the workpiece, and between the tool and the chips. This helps suppress temperature rise, reduces tool wear, prevents sticking, and improves machining quality. It also facilitates chip removal, uses less lubricant, and is highly effective, improving work efficiency while minimizing environmental pollution.

[0003] The aerosol can of the conventional micro-lubrication device does not have a separation net for separating oil and aerosol. The nozzle in the micro-lubrication device sprays into the aerosol can, and the aerosol comes into contact with the lubricating oil in the aerosol can. During the output process of the aerosol in the aerosol can, there are larger particles of oil mist, and the output is not completely micron-level oil mist. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a minimal lubrication device with the function of separating oil and aerosol. By setting up a separation structure, the lubricating oil entering the aerosol tank is filtered through a filter cartridge and then input into the oil inlet of the nozzle. At the same time, the larger particles of oil mist sprayed into the upper part of the aerosol tank by the nozzle are condensed into oil droplets through a separation net and then enter the oil liquid at the lower end, so that the upper space of the separation net only stores micron-sized aerosol particles that meet the requirements.

[0005] The present invention is achieved through the following technical solutions: a minimal lubrication device with the function of separating oil and aerosol, comprising a box, an air filter, an aerosol can, an intermediate relay, a buzzer, a power switch, a solenoid valve, a pressure regulating valve I, a pressure regulating valve II, a reversing valve I, a reversing valve II, a pneumatic ball valve I and a pneumatic ball valve II;

[0006] The rear wall of the box is detachably provided with a mounting plate, and the top of the box is provided with the buzzer and the power switch;

[0007] The aerosol can is provided on the lower left side of the mounting plate, and the pneumatic ball valve II is connected to the upper left side through the first bracket. A U-shaped fixing bracket is provided on the upper part of the mounting plate, and the pressure regulating valve I is provided on the left side of the U-shaped fixing bracket, and the pressure regulating valve II is provided on the right side. The right side of the mounting plate is provided with the reversing valve I, the second bracket, the reversing valve II, the third bracket and the fourth bracket from bottom to top. The air filter is provided at the lower end of the second bracket and the intermediate relay is provided at the upper end. The solenoid valve is provided on the third bracket, and the pneumatic ball valve I is provided on the fourth bracket.

[0008] The aerosol can includes a can body, a nozzle, a liquid level sensor, a safety valve, an air supply joint, two aerosol output pipes, an oil supply structure, and an oil-gas separation structure; the oil-gas separation structure includes a filter cartridge and a separation net; the oil-gas separation structure is arranged in the inner cavity of the can body, and the nozzle, liquid level sensor, safety valve, air supply joint, two aerosol output pipes, and oil supply structure are arranged on the top of the can body; an oil inlet pipeline connected to the nozzle is arranged on one side of the bottom of the can body;

[0009] The filter cartridge includes an integrally arranged cartridge bottom and cartridge ring; the separation net is detachably arranged on the cartridge ring, and the separation net includes an integrally arranged mesh disk and a clamping ring;

[0010] The inner cavity of the aerosol can is divided into an upper aerosol chamber and a lower oil chamber by the separation net, and the volume ratio of the aerosol chamber to the oil chamber is 1:2; the cylinder ring and the mesh disk are provided with filter holes, and the size of the filter holes is 300 mesh;

[0011] The inlet of the air filter is connected to the air intake pipe, and the outlet is connected to the inlet of the solenoid valve. The outlet of the solenoid valve is connected to the pressure regulating valve I and the pressure regulating valve II respectively; the outlet of the pressure regulating valve I is connected to the air supply connector; the outlet of the pressure regulating valve II is connected to the nozzle, the reversing valve I and the reversing valve II respectively; the outlet of the reversing valve I is connected to the pneumatic ball valve I, and the outlet of the reversing valve II is connected to the pneumatic ball valve II;

[0012] One aerosol output pipe is provided with the pneumatic ball valve I, and the other aerosol output pipe is provided with a pneumatic ball valve II;

[0013] The intermediate relay is connected to the power switch, and the intermediate relay is electrically connected to the buzzer, the solenoid valve, the reversing valve I, the reversing valve II and the liquid level sensor.

[0014] Furthermore, the intermediate relay includes a first intermediate relay, a second intermediate relay, a third intermediate relay and a fourth intermediate relay;

[0015] The buzzer is electrically connected to the power switch and the liquid level sensor through the first intermediate relay;

[0016] The solenoid valve is electrically connected to the power switch through the second intermediate relay;

[0017] The reversing valve I is electrically connected to the power switch through the third intermediate relay;

[0018] The reversing valve II is electrically connected to the power switch through the fourth intermediate relay.

[0019] Furthermore, the filter cartridge includes an integrally arranged cartridge bottom and cartridge ring; the separation net is detachably arranged on the cartridge ring, the separation net includes an integrally arranged mesh plate and a clamping ring, and the upper and lower volumes of the inner cavity of the aerosol can are separated by the separation net in a ratio of 1:2; the separation net is fixed to the bottom of the aerosol can by a plurality of studs, and the separation net is provided with a first through hole for facilitating the insertion of the liquid level sensor and a second through hole for facilitating the insertion of the oil replenishing structure.

[0020] Furthermore, the oil supply structure includes a first oil supply pipe, an oil supply intermediate joint, a second oil supply pipe, an oil supply interface and an oil supply cover;

[0021] The oil replenishing intermediate joint is arranged at the top of the tank body, the first oil replenishing pipe is arranged at the lower end of the oil replenishing intermediate joint, and the lower end of the first oil replenishing pipe extends into the lower end of the filter cartridge; the second oil replenishing pipe is arranged at the upper end of the oil replenishing intermediate joint, and the upper end of the second oil replenishing pipe is connected to the oil replenishing interface extending out of the top of the box body, and an oil replenishing cover is provided on the oil replenishing interface.

[0022] Furthermore, the liquid level sensor is a float type liquid level sensor, the upper end of the liquid level sensor is connected to the top of the aerosol can, and the lower end extends into the lower part of the inner cavity of the filter cartridge;

[0023] The tank body is also provided with a liquid level display mechanism; the liquid level display mechanism comprises a transparent display tube and two second joints for connecting the display tube to the upper and lower ends of the tank body.

[0024] Furthermore, the tank body includes a tank cover, a tank bottom and a tank barrel arranged between the tank cover and the tank bottom; the tank cover, tank bottom and tank barrel are connected as a whole by multiple bolts and nuts; the tank cover and the tank bottom are both provided with an annular protrusion extending into the tank barrel, and the outer wall of the annular protrusion is provided with a sealing ring.

[0025] Furthermore, the box body includes a box shell and a box cover that can be opened and closed at the front end of the box shell; embedded spring-type folding handles are provided on the upper parts of both sides of the box shell, and two aerosol connectors, an air intake connector and a power connector are also provided on the top of the box shell; the air intake connector is connected to the inlet of the air filter through an air intake pipe; the two aerosol connectors are respectively connected to the corresponding aerosol output pipes; two chassis mounting brackets are provided on the rear wall of the box shell.

[0026] Furthermore, a first one-way valve is provided on the oil inlet pipeline of the nozzle; a second one-way valve is provided on the air inlet pipeline of the nozzle; and a pressure relief valve is provided on the top of the tank body.

[0027] The beneficial effect of the present invention is that: by setting up a separation structure, the lubricating oil entering the aerosol tank is filtered through the filter cartridge and then input into the oil inlet of the nozzle. At the same time, the larger particles of oil mist sprayed into the upper part of the aerosol tank by the nozzle are condensed into oil droplets through the separation net and then enter the oil liquid at the lower end, so that the upper space of the separation net only stores the required micron-sized aerosol particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A perspective view of the present invention;

[0029] Figure 2 for Figure 1 Internal three-dimensional Figure 1 ;

[0030] Figure 3 for Figure 1 Internal three-dimensional Figure 2 ;

[0031] Figure 4 It is the front view of the present invention;

[0032] Figure 5 for Figure 4 AA section view;

[0033] Figure 6 This is a control principle diagram of the present invention. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the above description of the present invention, it should be noted that the terms "one side," "the other side," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0038] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0039] like Figure 1-6 As shown, a minimal lubrication device with the function of separating oil and aerosol includes a housing, an air filter 1, an aerosol can, an intermediate relay, a buzzer 2, a power switch 3, a solenoid valve 4, a pressure regulating valve I5, a pressure regulating valve II6, a reversing valve I7, a reversing valve II8, a pneumatic ball valve I9, and a pneumatic ball valve II10;

[0040] The rear wall of the box is detachably provided with a mounting plate 11, and the top of the box is provided with a buzzer 2 and a power switch 3;

[0041] An aerosol can is provided on the lower left side of the mounting plate 11, and a pneumatic ball valve II 10 is connected to the upper left side via a first bracket 12. A U-shaped fixing bracket 13 is provided on the upper portion of the mounting plate. A pressure regulating valve I5 is provided on the left side of the U-shaped fixing bracket 13, and a pressure regulating valve II 6 is provided on the right side. A reversing valve I7, a second bracket 14, a reversing valve II 8, a third bracket 15, and a fourth bracket 16 are provided on the right side of the mounting plate 11 from bottom to top. An air filter 1 is provided at the lower end of the second bracket 14, and an intermediate relay is provided at the upper end. A solenoid valve 4 is provided on the third bracket 15, and a pneumatic ball valve I9 ​​is ​​provided on the fourth bracket 16.

[0042] The aerosol can includes a can body, a nozzle 17, a liquid level sensor 18, a safety valve 19, an air supply connector 20, two aerosol output pipes, an oil supply structure, and an oil-gas separation structure. The oil-gas separation structure includes a filter cartridge 21 and a separation net 22. The oil-gas separation structure is disposed within the inner cavity of the can body, while the nozzle, liquid level sensor, safety valve, air supply connector, two aerosol output pipes, and the oil supply structure are disposed on the top of the can body. An oil inlet line connected to the nozzle is disposed on one side of the bottom of the can body.

[0043] The filter cartridge 21 includes an integrally arranged cartridge bottom and cartridge ring; the separation net 22 is detachably arranged on the cartridge ring, and the separation net 22 includes an integrally arranged mesh plate and a clamping ring;

[0044] The inner cavity of the aerosol can is divided into an upper aerosol chamber and a lower oil chamber by a separation net 22, and the volume ratio of the aerosol chamber to the oil chamber is 1:2; filter holes are provided on the cylinder ring and the net plate, and the size of the filter holes is 300 mesh;

[0045] The inlet of the air filter is connected to the air intake pipe, and the outlet is connected to the inlet of the solenoid valve 4. The outlet of the solenoid valve 4 is connected to the inlets of the pressure regulating valve I5 and the pressure regulating valve II6 respectively; the outlet of the pressure regulating valve I is connected to the air supply connector 20; the outlet of the pressure regulating valve II6 is connected to the nozzle 17, the reversing valve I7 and the reversing valve II8 respectively; the outlet of the reversing valve I7 is connected to the pneumatic ball valve I9, and the outlet of the reversing valve II8 is connected to the pneumatic ball valve II10;

[0046] One aerosol output pipe is provided with a pneumatic ball valve I, and the other aerosol output pipe is provided with a pneumatic ball valve II;

[0047] The intermediate relay is connected to the power switch 3, and the intermediate relay is electrically connected to the buzzer 2, the solenoid valve 4, the reversing valve I7, the reversing valve II8 and the liquid level sensor 18; the reversing valve I7 and the reversing valve II8 are both electric reversing valves, which are used to control the opening and closing of the corresponding pneumatic ball valve and the pneumatic ball valve, thereby controlling the opening and closing of the corresponding aerosol output pipe.

[0048] Furthermore, the intermediate relay includes a first intermediate relay 23, a second intermediate relay 24, a third intermediate relay 25 and a fourth intermediate relay 26;

[0049] The buzzer is electrically connected to the power switch and the liquid level sensor through the first intermediate relay;

[0050] The solenoid valve is electrically connected to the power switch through the second intermediate relay;

[0051] The reversing valve I is electrically connected to the power switch through the third intermediate relay;

[0052] The reversing valve II is electrically connected to the power switch through the fourth intermediate relay.

[0053] Furthermore, the separation net is fixed to the bottom of the aerosol can by multiple studs, which makes it easy to disassemble the separation structure for cleaning. The separation net is provided with a first through hole for facilitating the insertion of the liquid level sensor and a second through hole for facilitating the insertion of the oil replenishing structure; the mesh size on the cylinder ring and the separation net is 300 mesh.

[0054] Furthermore, the oil replenishment structure includes a first oil replenishment pipe 38, an oil replenishment intermediate joint 39, a second oil replenishment pipe 40, an oil replenishment interface 41 and an oil replenishment cover 42;

[0055] The oil replenishing intermediate joint is arranged at the top of the tank body, the first oil replenishing pipe is arranged at the lower end of the oil replenishing intermediate joint, and the lower end of the first oil replenishing pipe extends into the lower end of the filter cartridge; the second oil replenishing pipe is arranged at the upper end of the oil replenishing intermediate joint, and the upper end of the second oil replenishing pipe is connected to the oil replenishing interface extending from the top of the box body, and an oil replenishing cover is provided on the oil replenishing interface.

[0056] Furthermore, the liquid level sensor 18 is a float type liquid level sensor, the upper end of which is connected to the top of the aerosol can and the lower end of which extends into the lower part of the inner cavity of the filter cartridge;

[0057] The tank body is also provided with a liquid level display mechanism; the liquid level display mechanism comprises a transparent display tube 27 and two second joints for connecting the display tube to the upper and lower ends of the tank body.

[0058] Furthermore, the tank body includes a tank cover 28, a tank bottom 29 and a tank barrel 30 arranged between the tank cover and the tank bottom; the tank cover, tank bottom and tank barrel are connected as a whole by multiple bolts and nuts; the tank cover and the tank bottom are both provided with an annular protrusion extending into the tank barrel, and the outer wall of the annular protrusion is provided with a sealing ring.

[0059] Furthermore, the box body includes a box shell 31 and a box cover 32 that can be opened and closed at the front end of the box shell; embedded spring-type folding handles 33 are provided on the upper parts of both sides of the box shell, and two aerosol connectors 34, an air intake connector 35 and a power connector 36 are also provided on the top of the box shell; the air intake connector is connected to the inlet of the air filter 1 through the air intake pipe; the two aerosol connectors are respectively connected to the corresponding aerosol output pipes; two chassis mounting brackets 37 are provided on the rear wall of the box shell.

[0060] Furthermore, a first one-way valve is provided on the oil inlet pipe of the nozzle; a second one-way valve is provided on the air inlet pipe of the nozzle; and a pressure relief valve 43 is provided on the top of the tank.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A minimal lubrication device capable of separating oil and mist, characterized in that: Including box body, air filter, aerosol can, intermediate relay, buzzer, power switch, solenoid valve, pressure regulating valve I, pressure regulating valve II, reversing valve I, reversing valve II, pneumatic ball valve I and pneumatic ball valve II; The rear wall of the box is detachably provided with a mounting plate, and the top of the box is provided with the buzzer and the power switch; The aerosol can is provided on the lower left side of the mounting plate, and the pneumatic ball valve II is connected to the upper left side through the first bracket. A U-shaped fixing bracket is provided on the upper part of the mounting plate, and the pressure regulating valve I is provided on the left side of the U-shaped fixing bracket, and the pressure regulating valve II is provided on the right side. The right side of the mounting plate is provided with the reversing valve I, the second bracket, the reversing valve II, the third bracket and the fourth bracket from bottom to top. The air filter is provided at the lower end of the second bracket and the intermediate relay is provided at the upper end. The solenoid valve is provided on the third bracket, and the pneumatic ball valve I is provided on the fourth bracket. The aerosol can includes a can body, a nozzle, a liquid level sensor, a safety valve, an air supply joint, two aerosol output pipes, an oil supply structure, and an oil-gas separation structure; the oil-gas separation structure includes a filter cartridge and a separation net; the oil-gas separation structure is arranged in the inner cavity of the can body, and the nozzle, liquid level sensor, safety valve, air supply joint, two aerosol output pipes, and oil supply structure are arranged on the top of the can body; an oil inlet pipeline connected to the nozzle is arranged on one side of the bottom of the can body; The filter cartridge includes an integrally arranged cartridge bottom and cartridge ring; the separation net is detachably arranged on the cartridge ring, and the separation net includes an integrally arranged mesh disk and a clamping ring; The inner cavity of the aerosol can is divided into an upper aerosol chamber and a lower oil chamber by the separation net, and the volume ratio of the aerosol chamber to the oil chamber is 1:2; the cylinder ring and the mesh disk are provided with filter holes, and the size of the filter holes is 300 mesh; The inlet of the air filter is connected to the air intake pipe, and the outlet is connected to the inlet of the solenoid valve. The outlet of the solenoid valve is connected to the pressure regulating valve I and the pressure regulating valve II respectively; the outlet of the pressure regulating valve I is connected to the air supply connector; the outlet of the pressure regulating valve II is connected to the nozzle, the reversing valve I and the reversing valve II respectively; the outlet of the reversing valve I is connected to the pneumatic ball valve I, and the outlet of the reversing valve II is connected to the pneumatic ball valve II; One aerosol output pipe is provided with the pneumatic ball valve I, and the other aerosol output pipe is provided with a pneumatic ball valve II; The intermediate relay is connected to the power switch, and the intermediate relay is electrically connected to the buzzer, the solenoid valve, the reversing valve I, the reversing valve II and the liquid level sensor.

2. The minimal lubrication device capable of separating oil and mist according to claim 1, characterized in that: The intermediate relays include a first intermediate relay, a second intermediate relay, a third intermediate relay and a fourth intermediate relay; The buzzer is electrically connected to the power switch and the liquid level sensor through the first intermediate relay; The solenoid valve is electrically connected to the power switch through the second intermediate relay; The reversing valve I is electrically connected to the power switch through the third intermediate relay; The reversing valve II is electrically connected to the power switch through the fourth intermediate relay.

3. The minimal lubrication device capable of separating oil and mist according to claim 1, characterized in that: The separation net is fixed to the bottom of the aerosol can by a plurality of studs. The separation net is provided with a first through hole for facilitating the insertion of the liquid level sensor and a second through hole for facilitating the insertion of the oil replenishing structure.

4. The minimal lubrication device capable of separating oil and mist according to claim 1, characterized in that: The oil replenishment structure includes a first oil replenishment pipe, an oil replenishment intermediate joint, a second oil replenishment pipe, an oil replenishment interface and an oil replenishment cover; The oil replenishing intermediate joint is arranged at the top of the tank body, the first oil replenishing pipe is arranged at the lower end of the oil replenishing intermediate joint, and the lower end of the first oil replenishing pipe extends into the lower end of the filter cartridge; the second oil replenishing pipe is arranged at the upper end of the oil replenishing intermediate joint, and the upper end of the second oil replenishing pipe is connected to the oil replenishing interface extending out of the top of the box body, and an oil replenishing cover is provided on the oil replenishing interface.

5. The minimal lubrication device capable of separating oil and mist according to claim 1, characterized in that: The liquid level sensor is a float type liquid level sensor, the upper end of which is connected to the top of the aerosol can and the lower end of which extends into the lower part of the inner cavity of the filter cartridge; The tank body is also provided with a liquid level display mechanism; the liquid level display mechanism comprises a transparent display tube and two second joints for connecting the display tube to the upper and lower ends of the tank body.

6. The minimal lubrication device capable of separating oil and mist according to claim 1, characterized in that: The tank body includes a tank cover, a tank bottom and a tank barrel arranged between the tank cover and the tank bottom; the tank cover, tank bottom and tank barrel are connected as a whole by multiple bolts and nuts; the tank cover and the tank bottom are both provided with an annular protrusion extending into the tank barrel, and the outer wall of the annular protrusion is provided with a sealing ring.

7. The minimal lubrication device capable of separating oil and mist according to claim 1, characterized in that: The box body includes a box shell and a box cover that can be opened and closed at the front end of the box shell; embedded spring-type folding handles are provided on the upper parts of both sides of the box shell, and two aerosol connectors, an air intake connector and a power supply connector are also provided on the top of the box shell; the air intake connector is connected to the inlet of the air filter through an air intake pipe; the two aerosol connectors are respectively connected to the corresponding aerosol output pipes; two chassis mounting brackets are provided on the rear wall of the box shell.

8. The minimal lubrication device capable of separating oil and mist according to claim 1, characterized in that: A first one-way valve is also provided on the oil inlet pipeline of the nozzle; a second one-way valve is also provided on the air inlet pipeline of the nozzle; and a pressure relief valve is also provided on the top of the tank body.

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