Oil mist lubrication system

Abstract

To provide an oil mist lubrication system capable of continuously and quantitatively discharging oil mist.SOLUTION: The oil mist lubrication system comprises an oil pump, an oil-air distributor and an oil mist generator, the oil-air distributor is provided with an oil inlet, an air inlet and at least one discharge joint, an outlet of the oil pump is communicated with the oil inlet of the oil-air distributor to inject oil into the oil-air distributor; Compressed air with a certain pressure is introduced into an air inlet of the oil-air distributor, the oil-air distributor delivers a certain amount of oil, mixes the oil with the compressed air to form an oil-air flow, and continuously discharges the formed oil-air flow through a discharge joint, the oil mist generator includes an oil mist nozzle, the oil mist nozzle is connected to the discharge joint, and the discharged oil-air flow flows into the oil mist nozzle and forms and sprays oil mist through the oil mist nozzle.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the technical field of oil mist lubrication, and in particular to oil mist lubrication systems. [Background technology]

[0002] Oil mist lubrication is a typical gas-liquid two-phase fluid lubrication technology that uses compressed air at a certain pressure to atomize liquid lubricating oil into fine particles, which are then suspended in the compressed air to form oil mist, which is then transported through pipelines under its own pressure energy to cutters, bearings, transmission sets, etc., where the sprayed lubricating oil serves the functions of heat dissipation and lubrication. However, conventional oil mist lubrication systems can only achieve continuous discharge of oil mist, and cannot achieve continuous and constant discharge of oil mist, which limits the scope of their use.

[0003] Therefore, in order to overcome the above drawbacks, an oil mist lubrication system capable of discharging oil mist continuously and quantitatively is needed. Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide an oil mist lubrication system that can continuously and quantitatively discharge oil mist. [Means for solving the problem]

[0005] To achieve the above object, the oil mist lubrication system of the present invention includes an oil pump, an oil-air distributor, and an oil mist generator, the oil-air distributor having an oil inlet, an air inlet, and at least one discharge joint, the outlet of the oil pump communicates with the oil inlet of the oil-air distributor to inject oil into the oil-air distributor, compressed air at a certain pressure is introduced into the air inlet of the oil-air distributor, the oil-air distributor delivers the supplied oil at a constant rate and mixes it with the supplied compressed air to form an oil-air flow, and continuously discharges the formed oil-air flow through the discharge joint, the oil mist generator includes an oil mist nozzle connected to the discharge joint, the oil mist nozzle discharged from the discharge joint flows into the oil mist nozzle, and oil mist is formed and sprayed out through the oil mist nozzle.

[0006] Preferably, the air inlet of the oil / air distributor is connected to a first supply air passage, and a first solenoid valve is attached to the first supply air passage for controlling opening and closing of the first supply air passage.

[0007] Preferably, the outlet of the oil pump and the oil inlet of the oil-air distributor are connected via an oil supply passage, and a filter is attached to the oil supply passage.

[0008] Preferably, the oil pump is provided with an intake port, the intake port of the oil pump is connected to a second supply air passage, and a second solenoid valve is attached to the second supply air passage for controlling the operating frequency of the oil pump.

[0009] Preferably, the oil mist lubrication system of the present invention is further provided with a first general supply air passage, and a first supply air passage and a second supply air passage are branched off from the end of the first general supply air passage, and a first air source treatment device is attached to the first general supply air passage for filtering and / or reducing the pressure of the supplied compressed air.

[0010] Preferably, the oil mist nozzle and the discharge joint are connected via an oil-air flow supply pipe, and the oil mist nozzle is further connected to a second general supply air passage, which is used to supply compressed air to the oil mist nozzle, and the compressed air supplied to the oil mist nozzle is mixed with the oil-air flow to form oil mist, which is then sprayed out.

[0011] Preferably, the oil mist generator further includes an oil mist storage container, the oil mist nozzle is provided in the oil mist storage container, and the oil mist storage container is connected to the oil mist discharge piping.

[0012] Preferably, the oil mist nozzle is provided with a structural chamber, the lower end of which opens to the bottom of the oil mist nozzle to form an oil mist outlet, the oil mist nozzle is provided with a fluid guide within the structural chamber, the fluid guide extends downward from the top of the structural chamber, and the lower end of the fluid guide is spaced a certain distance from the oil mist outlet, a first passage is provided within the fluid guide, and the fluid guide and the wall of the structural chamber define a second passage, the first passage and the second passage being used to supply oil-air flow respectively, or the first passage being used to supply oil-air flow and the second passage being used to supply a mixture of the oil-air flow and compressed air.

[0013] Preferably, the width of the second passage gradually narrows from top to bottom.

[0014] Preferably, the oil mist nozzle comprises a first pillar and a second pillar which are separably joined, the bottom of the first pillar protrudes downward to form a fluid guide, the first pillar is provided with a guiding chamber communicating with the first passage, the structural chamber is provided in the second pillar, the fluid guide is inserted into the structural chamber, the radius of the upper end of the fluid guide is equal to or greater than the radius of the upper end of the structural chamber, and the outer wall of the first pillar is cut with a guide plane extending from the top of the first pillar to the bottom of the first pillar, The inner plane is vertical, and a guide groove is provided on the top of the first pillar, one end of the guide groove communicating with the flow-guiding chamber and the other end of the guide groove opening to the guide plane, and the second pillar includes a first part and a second part, the second part being located below the first part, the first pillar and the first part having the same radius, the radius of the first part being smaller than the radius of the second part, and a plurality of flow-guiding passages are provided in the first part, one end of the flow-guiding passages communicating with the upper end of the second passages and the other end of the flow-guiding passages opening to the outer wall of the first part. [Effects of the Invention]

[0015] Compared with the prior art, the present invention uses an oil pump connected to the oil inlet of the oil-air distributor to supply oil to the oil-air distributor, and a constant-pressure compressed air is introduced into the air inlet of the oil-air distributor, allowing the oil-air distributor to deliver a constant amount of oil and mix it with the supplied compressed air to form an oil-air stream. The oil-air distributor can deliver oil accurately and quantitatively, and the accurate and constant amount of oil and the supplied compressed air are mixed in the oil-air distributor to form an oil-air stream, which is then continuously and quantitatively discharged. After the continuous and constant oil-air stream is injected into the oil mist nozzle, the oil mist nozzle can continuously and quantitatively generate and spray oil mist. As a result, the oil mist lubrication system of the present invention can continuously and quantitatively discharge oil mist. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a structural schematic diagram of the oil mist lubrication system of the present invention. [Figure 2] FIG. 2 is a front view of the oil mist lubrication system of the present invention. [Figure 3] FIG. 3 is a perspective view of the oil mist nozzle of the present invention. [Figure 4] FIG. 4 is a front view of the oil mist nozzle of the present invention. [Figure 5] FIG. 5 is a cross-sectional view of the oil mist nozzle of the present invention taken along the line AA in FIG. [Figure 6] FIG. 6 is a plan view of the oil mist nozzle of the present invention. [Figure 7] FIG. 7 is a cross-sectional view of the oil mist nozzle of the present invention taken along line BB in FIG. [Figure 8] FIG. 8 is an exploded view of the oil mist nozzle of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] In order to describe the technical contents and structural features of the present invention in detail, the following description will be further given with reference to the embodiments in combination with the drawings.

[0018] As shown in FIGS. 1 and 2, the oil mist lubrication system 100 according to the present invention includes an oil pump 10, an oil-air distributor 20, and an oil mist generator 30. The oil-air distributor 20 is provided with an oil inlet 21, an air inlet 22, and at least one discharge joint 23. The outlet of the oil pump 10 communicates with the oil inlet 21 of the oil-air distributor 20, allowing oil to be injected into the oil-air distributor 20. Compressed air at a constant pressure is introduced into the air inlet 22 of the oil-air distributor 20. The oil-air distributor 20 delivers a constant amount of oil and mixes it with the compressed air to form an oil-air flow, which is then continuously discharged through the discharge joint 23. The oil mist generator 30 includes an oil mist nozzle 31 connected to the discharge joint 23. The oil-air flow discharged from the discharge joint 23 flows into the oil mist nozzle 31, where it is sprayed as oil mist.

[0019] In this invention, an oil pump 10 is installed and connected to the oil inlet 21 of the oil-air distributor 20 to supply oil to the oil-air distributor 20. Compressed air at a constant pressure is then introduced into the air inlet 22 of the oil-air distributor 20, allowing the oil-air distributor 20 to deliver a constant amount of oil and mix it with the compressed air to form an oil-air stream. The oil-air distributor 20 delivers oil accurately and quantitatively, and mixes the accurate amount of oil with the supplied compressed air to form an oil-air stream. The oil-air stream is then continuously and quantitatively discharged. The continuous and constant oil-air stream is then injected into the oil mist nozzle 31, which then generates and sprays oil mist continuously and quantitatively. As described above, the oil mist lubrication system 100 of this invention enables continuous and constant oil mist delivery.

[0020] The oil-air distributor 20 is a volumetric distributor, and the oil discharge amount for each operation is constant, for example, 0.01 ml, 0.02 ml, 0.03 ml, 0.04 ml, 0.05 ml, etc. By setting the corresponding value, the oil-air distributor 20 can be controlled to deliver oil accurately and quantitatively as needed, and the accurate and quantitative oil and the supplied compressed air are mixed in the oil-air distributor 20 to form and discharge a continuous and quantitative oil-air flow. The purpose of installing the oil-air distributor 20 in the present invention is to achieve a minute and constant oil discharge amount, that is, to deliver a minute and quantitative amount of oil and mix the oil and compressed air to form the required oil-air flow.

[0021] The oil mist lubrication of the present invention can be applied to the lubrication of the power turret gear of a lathe, the lubrication of the main shaft bearing of a precision grinder, etc., and can control the temperature and lubrication of the bearings and gears.

[0022] 1 and 2, the air inlet 22 of the oil / air distributor 20 is connected to a first supply air passage 40, which is fitted with a first solenoid valve 41 for controlling the opening and closing of the first supply. The first solenoid valve 41 is generally in a normally open state, so that the first supply air passage 40 constantly injects compressed air into the oil / air distributor 20.

[0023] 1 and 2, a pneumatic pump is used as the oil pump 10, but is not limited to this. The outlet of the oil pump 10 and the oil inlet 21 of the oil-air distributor 20 are connected via an oil supply passage 50, and a filter 51 for filtering the oil supplied to the oil-air distributor 20 is attached to the oil supply passage 50.

[0024] 1 and 2, an intake port is provided in the oil pump 10, and the intake port of the oil pump 10 is connected to a second supply air passage 60, and a second solenoid valve 61 is attached to the second supply air passage 60 to control the operating frequency of the oil pump 10. By controlling the opening and closing frequency of the second solenoid valve 61, the operating frequency of the oil pump 10 can be controlled, and thereby the frequency of oil delivery to the oil-air distributor 20 can be adjusted.

[0025] In addition, the oil discharge frequency of the oil-air distributor 20 can be adjusted. For example, if an oil-air distributor 20 with an oil discharge volume of 0.01 ml is used and the oil discharge frequency is increased from 0.01 ml / min to 0.03 ml / min, the oil-air distributor 20 will adjust from originally discharging oil once per minute to discharging oil three times per minute. The higher the oil discharge frequency, the higher the oil content in the oil-air flow discharged from the discharge joint 23. Conversely, the lower the oil discharge frequency, the lower the oil content in the oil-air flow discharged from the discharge joint 23.

[0026] As shown in Figures 1 and 2, the oil mist lubrication system 100 of the present invention is further provided with a first general supply air passage 70, and the first supply air passage 40 and the second supply air passage 60 are formed by branching off from the end of the first general supply air passage 70. A first air source processing device 71 is attached to the first general supply air passage 70 to filter and reduce the pressure of the supplied compressed air. The installation of the first general supply air passage 70 makes it easier to control the air pressure of the compressed air. Preferably, the first air source processing device 71 includes a filter and a pressure reducing valve, and may also include a pressure gauge to make it easier to observe and monitor the air pressure.

[0027] As shown in FIGS. 1 and 2, the oil mist nozzle 31 and the discharge joint 23 are connected via an oil-air flow supply pipe 80, and the oil mist nozzle 31 is further connected to a second general supply air passage 90. The second general supply air passage 90 is used to supply compressed air to the oil mist nozzle 31, and the compressed air supplied to the oil mist nozzle 31 is mixed with the oil-air flow to form oil mist, which is then sprayed out. Note that the second general supply air passage 90 is not essential; that is, even if the second general supply air passage 90 does not supply compressed air to the oil mist nozzle 31 and an oil-air flow is supplied to the oil mist nozzle 31 only through the oil-air flow supply pipe 80, oil mist can be generated and sprayed out. Preferably, a second air source processing device 91 is attached to the second general supply air passage 90 to filter and reduce the pressure of the supplied compressed air. The second air source processing device 91 includes a filter and a pressure reducing valve, and may also include a pressure gauge to make it easier to observe and monitor the air pressure.

[0028] 1 and 2, the oil mist generator 30 further includes an oil mist storage container 32, the oil mist nozzle 31 is provided in the oil mist storage container 32, and the oil mist storage container 32 is connected to an oil mist discharge pipe 33. The sprayed oil mist is temporarily stored in the oil mist storage container 32 and then discharged via the oil mist discharge pipe 33 to the lubrication point and cooling point.

[0029] 3 to 8, the present invention further innovates the structure of the oil mist nozzle 31, making it possible to generate and spray oil mist without supplying compressed air alone. Specifically, a structural chamber 311 is provided within the oil mist nozzle 31, and the lower end of the structural chamber 311 opens to the bottom of the oil mist nozzle 31 to form an oil mist outlet 312. A fluid guide 313 is provided within the structural chamber 311 of the oil mist nozzle 31, and the fluid guide 313 extends downward from the top of the structural chamber 311, with the lower end of the fluid guide 313 being spaced a certain distance from the oil mist outlet 312. The fluid guide 313 is provided with a first passage 314, and the fluid guide 313 and the wall of the structural chamber 311 define a second passage 315, the first passage 314 and the second passage 315 being used to supply oil-air flow respectively, or the first passage 314 is used to supply oil-air flow while the second passage 315 is used to supply a mixture of oil-air flow and compressed air.

[0030] The "oil-air flow" flowing from the discharge joint 23 to the oil supply passage 50 is a fluid formed by mixing a certain amount of lubricating oil with compressed air, and this fluid is not atomized, but is turned into oil mist through the spraying process of the oil mist nozzle 31. A conventional oil mist nozzle has two flow paths, one of which is used to supply compressed air, and the other is used to supply a certain amount of lubricating oil droplets; the lubricating oil droplets and compressed air are not mixed in advance, but rather flow independently and are mixed at the end of each path to form oil mist and be sprayed out.

[0031] In this invention, the oil-air distributor 20 forms an oil-air flow, which is discharged through the discharge joint 23 and supplied to the oil mist nozzle 31. Part of the oil-air flow flows along the first passage 314, and part of the oil-air flow flows along the second passage 315. The oil-air flow discharged from the first passage 314 and the oil-air flow discharged from the second passage 315 finally disperse and mix at the oil mist outlet 312 to form and spray oil mist. This reduces the amount of droplets and the amount of unatomized oil, thereby producing more oil mist and improving the atomization effect. Therefore, neither the first passage 314 nor the second passage 315 supplies compressed air separately. Instead, oil and compressed air are first formed into an oil-air flow, and the oil mist is formed by simply mixing the two oil-air flows, thereby achieving the objective of improving the atomization effect and contributing to the uniformity of the oil mist.

[0032] The above-described solution for forming oil mist using the oil mist nozzle 31 temporarily stops supplying compressed air from the second general supply air passage 90 to the oil mist nozzle 31.

[0033] In practice, compressed air may be supplied to the oil mist nozzle 31 using the second general supply air passage 90, and the injected compressed air will not flow solely through the first passage 314 and the second passage 315. The compressed air discharged from the second general supply air passage 90 will flow into the second passage 315 and mix with the oil-air flow that has flowed into the second passage 315 to form a mixed fluid. The involvement of compressed air allows the mixed fluid formed in the second passage 315 to flow more quickly, improving the discharge speed and discharge pressure of the oil mist and contributing to adapting to different production scenarios.

[0034] Furthermore, the width of the second passage 315 gradually narrows from top to bottom, and the second passage 315 forms a structure similar to a "Venturi tube." The oil-air flow (or a mixture of the oil-air flow and compressed air) discharged from the second passage 315 has a high flow rate and low pressure, and can attract the oil-air flow discharged from the first passage 314, and the two collide and mix with each other, finally forming oil mist and spraying it out at the oil mist outlet 312.

[0035] 3 to 8, the oil mist nozzle 31 includes a first pillar 316 and a second pillar 317 that are separably coupled together. The bottom of the first pillar 316 protrudes downward to form a fluid guide 313, and the first pillar 316 is provided with a flow guide chamber 318 that communicates with the first passage 314. The structural chamber 311 is provided within the second pillar 317. The fluid guide 313 is inserted into the structural chamber 311, and the radius of the upper end of the fluid guide 313 is equal to or greater than the radius of the upper end of the structural chamber 311, so that the upper end of the fluid guide 313 is attached to the upper end of the structural chamber 311 by interference fit or intermediate fit. A guide plane 319 is cut into the outer wall of the first pillar 316, extending from the top of the first pillar 316 to the bottom of the first pillar 316. The guide plane 319 is arranged vertically, and a guide groove 3161 is arranged on the top of the first pillar 316. One end of the guide groove 3161 communicates with the flow-guiding chamber 318, and the other end of the guide groove 3161 opens into the guide plane 319. The second cylinder 317 includes a first portion 3171 and a second portion 3172, the second portion 3172 being located below the first portion 3171, the first cylinder 316 and the first portion 3171 having the same radius, the radius of the first portion 3171 being smaller than the radius of the second portion 3172, and a plurality of guide passages 310 being provided in the first portion 3171, one end of the guide passages 310 being connected to the upper end of the second passage 315, and the other end of the guide passages 310 being open to the outer wall of the first portion 3171.

[0036] When the oil mist nozzle 31 is attached to a certain device (for example, a spray gun, shown by a dashed frame in FIG. 7), the oil-air flow supplied to the guide chamber 318 is divided into two flows, one of which flows into the first passage 314 (i.e., flows in the direction of arrow K in FIG. 7), and the other flows out of the guide groove 3161, flows downward along the guide plane 319 to the side wall of the first part 3171, then flows into the guide passage 310, and finally flows into the second passage 315 (i.e., flows in the direction of arrow T in FIG. 7). Thus, by providing the guide plane 319 and the guide groove 3161, the oil-air flow is divided into two flows which respectively flow into the first passage 314 and the second passage 315, and thus the oil-air flows merge and then split, which contributes to simplifying the structure and arrangement.

[0037] Regarding the above description of the oil mist nozzle 31, the direction indicated by the arrow Z in the corresponding FIG. 4 is from top to bottom.

[0038] 7, when compressed air is supplied to the oil mist nozzle 31 using the second general supply air passage 90, the compressed air discharged from the second general supply air passage 90 flows to the outer surface of the first part 3171, and the compressed air flows into the guide passage 310, and the oil-air flow flowing out of the guide groove 3161 also flows into the guide passage 310 and then into the second passage 315, and these two mix with each other to form a mixed fluid that is transported to the second passage 315. Note that the compressed air does not flow into the guide chamber 318 because the oil-air flow injected into the guide chamber 318 has a high pressure, while the pressures in the second passage 315 and the structural chamber 311 are relatively low, and therefore, due to the effect of increasing and decreasing entropy, the compressed air flows only into the guide passage 310.

[0039] The following is a brief introduction to the operating process of the oil mist lubrication system 100 of the present invention: The first solenoid valve 41 opens, the second solenoid valve 61 opens and closes at a constant operating frequency, the first supply air passage 40 supplies compressed air at a constant pressure to the air inlet 22 of the oil-air distributor 20, the oil pump 10 pumps oil at a constant frequency, the pumped oil is supplied to the oil inlet 21 of the oil-air distributor 20 via the oil supply passage 50, the oil-air distributor 20 pumps the supplied oil at a constant rate and mixes it with the supplied compressed air to form an oil-air flow, which is then continuously discharged through the discharge joint 23. The oil-air flow first enters the guide chamber 318 and is divided into two flows, one of which flows into the first passage 314 (i.e., flows in the direction of arrow K in FIG. 7), and the other flows out of the guide groove 3161, flows downward along the guide plane 319 to the side wall of the first part 3171, then flows into the guide passage 310, and finally flows into the second passage 315 (i.e., flows in the direction of arrow T in FIG. 7). The compressed air supplied from the second general supply air passage 90 flows into the first part 3171. The compressed air flows onto the outer surface of the oil mist outlet 312, and this part of the compressed air flows into the guide passage 310 and then into the second passage 315, where it mixes with the oil-air flow in the second passage 315 to form a mixed fluid. The oil-air flow flowing out of the first passage 314 and the mixed fluid in the second passage 315 mix and disperse to form an oil mist, which is sprayed out from the oil mist outlet 312, is temporarily stored in the oil mist storage container 32, and is finally discharged through the oil mist discharge pipe 33.

[0040] The above disclosure is merely a preferred embodiment of the present invention, and does not limit the scope of protection set forth in the claims of the present invention. Therefore, any equivalent changes according to the claims of the present invention shall fall within the scope of the present invention.

Claims

1. an outlet of the oil pump communicates with the oil inlet of the oil-air distributor to inject oil into the oil-air distributor; compressed air at a constant pressure is introduced into the air inlet of the oil-air distributor; the oil-air distributor delivers a constant amount of oil and mixes it with the compressed air to form an oil-air flow, and continuously discharges the formed oil-air flow through the discharge joint; the oil mist generator includes an oil mist nozzle connected to the discharge joint; the oil mist nozzle discharged from the discharge joint flows into the oil mist nozzle and forms and sprays out the oil mist through the oil mist nozzle.

2. 2. The oil mist lubrication system according to claim 1, wherein the air inlet of the oil-air distributor is connected to a first supply air passage, and a first solenoid valve is attached to the first supply air passage for controlling opening and closing of the first supply air passage.

3. 2. The oil mist lubrication system according to claim 1, wherein the outlet of the oil pump and the oil inlet of the oil-air distributor are connected via an oil supply passage, and a filter is attached to the oil supply passage.

4. 3. The oil mist lubrication system according to claim 2, wherein the oil pump is provided with an intake port, the intake port of the oil pump is connected to a second supply air passage, and a second solenoid valve is attached to the second supply air passage for controlling the operating frequency of the oil pump.

5. 5. The oil mist lubrication system according to claim 4, further comprising a first general supply air passage, the first supply air passage and the second supply air passage branching off from an end of the first general supply air passage, and a first air source treatment device for filtering and / or reducing the pressure of the supplied compressed air attached to the first general supply air passage.

6. 6. The oil mist lubrication system according to claim 5, wherein the oil mist nozzle and the discharge joint are connected via an oil-air flow supply pipe, the oil mist nozzle is further connected to a second general supply air passage, the second general supply air passage is used to supply compressed air to the oil mist nozzle, and the compressed air supplied to the oil mist nozzle is mixed with the oil-air flow to form oil mist and then sprayed out.

7. 2. The oil mist lubrication system according to claim 1, wherein the oil mist generator further comprises an oil mist storage container, the oil mist nozzle is disposed in the oil mist storage container, and the oil mist storage container is connected to an oil mist discharge pipe.

8. 2. The oil mist lubrication system according to claim 1, wherein the oil mist nozzle is provided with a chamber, the lower end of which opens to the bottom of the oil mist nozzle to form an oil mist outlet, the oil mist nozzle is provided with a fluid guide in the chamber, the fluid guide extends downward from the top of the chamber, and the lower end of the fluid guide is spaced a certain distance from the oil mist outlet, a first passage is provided in the fluid guide, and the fluid guide and a wall surface of the chamber define a second passage, the first passage and the second passage are respectively used to supply oil-air flow, or the first passage is used to supply oil-air flow but the second passage is used to supply a mixed fluid of the oil-air flow and compressed air.

9. 9. The oil mist lubrication system according to claim 8, wherein the width of the second passage gradually narrows from top to bottom.

10. The oil mist nozzle includes a first pillar and a second pillar that are separably coupled, the bottom of the first pillar protruding downward to form the fluid guide, the first pillar is provided with a flow-guiding chamber communicating with the first passage, the structural chamber is provided within the second pillar, the fluid guide is inserted into the structural chamber, the radius of the upper end of the fluid guide is equal to or greater than the radius of the upper end of the structural chamber, a guide plane is cut out on the outer wall of the first pillar, extending from the top of the first pillar to the bottom of the first pillar, the guide plane is provided vertically, 9. The oil mist lubrication system according to claim 8, wherein a guide groove is provided on an upper portion, one end of the guide groove is connected to the flow guide chamber and the other end of the guide groove is open to the guide plane; the second pillar includes a first portion and a second portion, the second portion is provided below the first portion, the first pillar and the first portion have the same radius, the radius of the first portion is smaller than the radius of the second portion; and a plurality of flow guide passages are provided in the first portion, one end of each flow guide passage is connected to an upper end of the second passage and the other end of each flow guide passage is open to the outer wall of the first portion.

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