Atomizing nozzle and micro-lubrication system

Abstract

The application provides an atomizing nozzle and a micro-lubrication system. The atomizing nozzle comprises: an air inlet part, the air inlet part comprising an air inlet cavity and an air inlet and an air outlet respectively located at opposite ends of the air inlet cavity and both in communication with the air inlet cavity; a sound attenuation part, the sound attenuation part comprising a containing cavity and a mounting opening and a spraying opening respectively located at opposite ends of the containing cavity and both in communication with the containing cavity, and the air inlet part having the air outlet is inserted into the containing cavity through the mounting opening; wherein, a turbulence structure is arranged in the containing cavity, so as to solve the problem that the atomizing nozzle of the micro-lubrication system in the prior art cannot reduce noise while not affecting the atomization effect.

Description

Technical Field

[0001] This invention relates to the field of micro-lubrication technology, and more specifically, to an atomizing nozzle and a micro-lubrication system. Background Technology

[0002] With the rapid development of domestic manufacturing technology and the continuous expansion of market size, the demand for CNC machine tools required for production and processing is also constantly expanding. At present, CNC machine tools have been widely used in the fields of automobiles, molds, aerospace, and military industry.

[0003] During the machining process of CNC machine tools, coolant / cutting fluid is usually used. Cutting fluid mainly plays the roles of lubrication, cooling, chip removal and corrosion prevention in cutting. It helps to improve tool life, reduce workpiece thermal deformation and ensure workpiece surface quality. However, the large-scale use of cutting fluid not only leads to increased production costs, but also causes significant potential damage to the environment and the health of operators.

[0004] Micro-lubrication technology can effectively solve the above problems. Its working principle is to mix compressed gas (air, nitrogen, nitrogen dioxide, etc.) with a very small amount of lubricating oil (environmentally friendly vegetable oil) during the metal processing to form micron-sized droplets, which are then sprayed into the processing area in extremely small amounts of 5cc to 50cc per hour by a micro oil pump for effective lubrication.

[0005] In addition to reducing friction between the tool and the workpiece, lowering cutting temperature, improving chip flow direction, and reducing the purchase cost of metalworking oils, micro-volume lubricating oils have a more significant advantage: extremely high environmental performance. They not only greatly improve the cleanliness of the operating environment and effectively protect the health of operators, but also have biodegradable properties, allowing machining centers to easily meet national environmental requirements for wastewater treatment in metal processing and local environmental assessments.

[0006] However, micro-lubrication technology also has its shortcomings, such as noise. When the micro-lubrication system is working, in order to ensure the atomization effect, the mixing velocity of the atomized oil and the air sprayed from the atomizing nozzle is relatively high. The friction and vibration between them and the surrounding air will generate a lot of noise, and the noise level often exceeds the noise standard range specified in the workshop. Over time, this will cause potential harm to the health of the operators. Summary of the Invention

[0007] The main objective of this invention is to provide an atomizing nozzle and a micro-lubrication system to solve the problem that the atomizing nozzles of the existing micro-lubrication systems cannot reduce noise without affecting the atomization effect.

[0008] To achieve the above objectives, according to one aspect of the present invention, an atomizing nozzle is provided, comprising: an air intake portion including an air intake chamber and an air intake inlet and an air intake outlet respectively located at opposite ends of the air intake chamber and both communicating with the air intake chamber; and a noise reduction portion including a receiving chamber and an installation opening and a spray port respectively located at opposite ends of the receiving chamber and both communicating with the receiving chamber, wherein one end of the air intake portion having an air intake outlet is inserted into the receiving chamber through the installation opening; wherein a turbulence-inducing structure is provided inside the receiving chamber.

[0009] Furthermore, the intake chamber includes a first chamber, a second chamber, a third chamber, and a fourth chamber connected sequentially along the fluid flow direction. The first chamber, the second chamber, and the fourth chamber are all cylindrical chambers, and the third chamber is a conical chamber. The inner diameter of the second chamber is greater than the inner diameter of the first chamber and also greater than the inner diameter of the fourth chamber. The maximum inner diameter of the third chamber is equal to the inner diameter of the second chamber, and the minimum inner diameter of the third chamber is equal to the inner diameter of the fourth chamber.

[0010] Furthermore, there is a threaded connection between the air intake and the muffler.

[0011] Furthermore, the receiving cavity includes an installation cavity, a turbulence cavity, an atomization enhancement cavity, and an outlet cavity connected sequentially along the fluid flow direction. The air inlet is located in the installation cavity, and the turbulence structure includes a main turbulence part located in the turbulence cavity and an atomization enhancement part located in the atomization enhancement cavity. The outlet cavity is connected to the injection port.

[0012] Furthermore, the mounting cavity includes a fifth cavity and a sixth cavity connected sequentially along the fluid flow direction. The fifth cavity is a cylindrical cavity, and the sixth cavity is a conical cavity. The inner diameter of the fifth cavity is equal to the maximum inner diameter of the sixth cavity, and the inner diameter of the sixth cavity gradually decreases in the direction away from the fifth cavity. An internal thread is provided in the fifth cavity. The outer peripheral surface of the air intake includes a first cylindrical surface, a second cylindrical surface, and a first conical surface connected sequentially along the fluid flow direction. The outer diameter of the first cylindrical surface is smaller than the outer diameter of the second cylindrical surface. The first cylindrical surface is located outside the receiving cavity. An external thread that connects with the internal thread is provided on the second cylindrical surface. The first conical surface is inserted into the sixth cavity.

[0013] Furthermore, the turbulence cavity includes a seventh cavity, an eighth cavity, and a ninth cavity connected sequentially along the fluid flow direction. The seventh and ninth cavities are both conical cavities, and the eighth cavity is a cylindrical cavity. The inner diameter of the eighth cavity, the maximum inner diameter of the seventh cavity, and the maximum inner diameter of the ninth cavity are the same. The inner diameters of the seventh and ninth cavities gradually decrease in the direction away from the eighth cavity. The outer peripheral surface of the main turbulence section includes a second conical surface, a third cylindrical surface, and a third conical surface connected sequentially along the fluid flow direction. The second conical surface is spaced apart from the inner wall surface of the seventh cavity. The third cylindrical surface is connected to the inner wall surface of the eighth cavity by multiple connecting blocks spaced around the periphery of the main turbulence section to form multiple flow holes. The third conical surface is spaced apart from the inner wall surface of the ninth cavity.

[0014] Furthermore, the main spoiler is a hollow structure, and the inner hole of the main spoiler includes a tenth cavity and an eleventh cavity connected sequentially along the direction close to the air intake. Both the tenth cavity and the eleventh cavity are conical cavities. In particular, the inner diameter of the eleventh cavity gradually increases along the direction away from the tenth cavity.

[0015] Furthermore, the outlet cavity is a conical cavity, and the inner diameter of the outlet cavity gradually decreases along the direction close to the jet nozzle.

[0016] Furthermore, the atomization enhancement section is a spiral flow channel disposed on the inner wall surface of the atomization enhancement cavity.

[0017] According to another aspect of the present invention, a micro-lubrication system is provided, comprising a pressure control valve, a solenoid valve, an oil tank, an oil pump, and an atomizing nozzle, wherein the atomizing nozzle is the aforementioned atomizing nozzle; wherein, the compressed air inlet of the oil pump is connected to an air compressor through an air intake pipe, the lubricating oil inlet of the oil pump is connected to the oil tank through a liquid inlet pipe, and the outlet of the oil pump is connected to the atomizing nozzle; the pressure control valve and the solenoid valve are sequentially arranged on the air intake pipe.

[0018] Applying the technical solution of this invention, the atomizing nozzle of this invention includes: an air inlet, comprising an air inlet chamber and an air inlet and an air outlet respectively located at opposite ends of the air inlet chamber and both communicating with the air inlet chamber; and a silencing part, comprising a receiving chamber and an installation opening and a spray port respectively located at opposite ends of the receiving chamber and both communicating with the receiving chamber, wherein one end of the air inlet having an air outlet is inserted into the receiving chamber through the installation opening; wherein a turbulence structure is provided within the receiving chamber. Thus, the atomizing nozzle of this invention, by providing an air inlet, a silencing part, and a turbulence structure, reduces the flow velocity and noise of the oil-air mixture within the atomizing nozzle while ensuring atomization effect through the turbulence structure, solving the problem in the prior art that atomizing nozzles in micro-lubrication systems cannot reduce noise without affecting atomization effect. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 A schematic diagram of an embodiment of an atomizing nozzle according to the present invention is shown;

[0021] Figure 2 It shows Figure 1 A side view of the atomizing nozzle shown;

[0022] Figure 3 It shows Figure 1 The front view of the atomizing nozzle is shown.

[0023] Figure 4 It shows Figure 3 The cross-sectional view of the atomizing nozzle along the EE direction is shown.

[0024] Figure 5 It shows Figure 3 The cross-sectional view of the atomizing nozzle along the BB direction is shown.

[0025] Figure 6 It shows Figure 1 A cross-sectional view of the air inlet of the atomizing nozzle shown;

[0026] Figure 7 It shows Figure 1 A cross-sectional view of the silencer section of the atomizing nozzle shown;

[0027] Figure 8 It shows including Figure 1 A schematic diagram of the micro-lubrication system for the atomizing nozzle is shown.

[0028] Figure 9 It shows Figure 1 The diagram shows the fluid flow process within the atomizing nozzle.

[0029] The above figures include the following reference numerals:

[0030] 1. Pressure control valve; 2. Solenoid valve; 3. Oil tank; 4. Oil pump; 5. Frequency controller; 6. Atomizing nozzle; 7. Air compressor;

[0031] 10. Air intake section;

[0032] 11. Intake chamber; 111. First chamber; 112. Second chamber; 113. Third chamber; 114. Fourth chamber; 115. First cylindrical surface; 116. Second cylindrical surface; 117. First conical surface;

[0033] 12. Air intake; 13. Air intake outlet;

[0034] 20. Muffler section;

[0035] 21. Receiving cavity; 211. Mounting cavity; 2111. Fifth cavity; 2112. Sixth cavity; 212. Turbulence cavity; 2121. Seventh cavity; 2122. Eighth cavity; 2123. Ninth cavity; 213. Atomization enhancement cavity; 214. Outlet cavity;

[0036] 22. Installation opening; 23. Spray nozzle;

[0037] 30. Turbulence structure;

[0038] 31. Main spoiler section; 311. Second conical surface; 312. Third cylindrical surface; 313. Third conical surface; 314. Tenth cavity; 315. Eleventh cavity;

[0039] 32. Atomization enhancement section; 320. Spiral flow channel; 33. Connecting block; 34. Flow passage. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] like Figures 1 to 7 As shown, the present invention provides an atomizing nozzle, comprising: an air intake 10, the air intake 10 including an air intake chamber 11 and an air intake inlet 12 and an air intake outlet 13 respectively located at opposite ends of the air intake chamber 11 and both communicating with the air intake chamber 11; and a silencing part 20, the silencing part 20 including a receiving cavity 21 and an installation opening 22 and a spray port 23 respectively located at opposite ends of the receiving cavity 21 and both communicating with the receiving cavity 21, wherein one end of the air intake 10 having the air intake outlet 13 is inserted into the receiving cavity 21 through the installation opening 22; wherein, a turbulence structure 30 is provided in the receiving cavity 21.

[0042] Thus, the atomizing nozzle of the present invention, by providing an air inlet 10, a noise reduction section 20 and a turbulence structure 30, reduces the flow rate and noise of the oil-gas mixture in the atomizing nozzle and ensures the atomization effect through the turbulence structure 30, thereby solving the problem that the atomizing nozzle of the prior art micro-lubrication system cannot reduce noise without affecting the atomization effect.

[0043] like Figure 6As shown, the air intake chamber 11 includes a first chamber 111, a second chamber 112, a third chamber 113, and a fourth chamber 114 connected sequentially along the fluid flow direction. The first chamber 111, the second chamber 112, and the fourth chamber 114 are all cylindrical chambers, and the third chamber 113 is a conical chamber. The inner diameter of the second chamber 112 is larger than the inner diameter of the first chamber 111 and larger than the inner diameter of the fourth chamber 114. The maximum inner diameter of the third chamber 113 is equal to the inner diameter of the second chamber 112, and the minimum inner diameter of the third chamber 113 is equal to the inner diameter of the fourth chamber 114.

[0044] The atomizing nozzle air inlet 10 and the silencer 20 of the present invention are threaded together.

[0045] like Figure 7 As shown, the receiving cavity 21 includes a mounting cavity 211, a turbulence cavity 212, an atomization enhancement cavity 213, and an outlet cavity 214 connected sequentially along the fluid flow direction. The air inlet 10 is located in the mounting cavity 211. The turbulence structure 30 includes a main turbulence part 31 located in the turbulence cavity 212 and an atomization enhancement part 32 located in the atomization enhancement cavity 213. The outlet cavity 214 is connected to the injection port 23.

[0046] like Figures 4 to 7 As shown, the mounting cavity 211 includes a fifth cavity 2111 and a sixth cavity 2112 connected sequentially along the fluid flow direction. The fifth cavity 2111 is a cylindrical cavity, and the sixth cavity 2112 is a conical cavity. The inner diameter of the fifth cavity 2111 is equal to the maximum inner diameter of the sixth cavity 2112. The inner diameter of the sixth cavity 2112 gradually decreases in the direction away from the fifth cavity 2111. The fifth cavity 2111 is provided with an internal thread. The outer peripheral surface of the air intake 10 includes a first cylindrical surface 115, a second cylindrical surface 116, and a first conical surface 117 connected sequentially along the fluid flow direction. The outer diameter of the first cylindrical surface 115 is smaller than the outer diameter of the second cylindrical surface 116. The first cylindrical surface 115 is located outside the receiving cavity 21. The second cylindrical surface 116 is provided with an external thread that is threaded to the internal thread. The first conical surface 117 is inserted into the sixth cavity 2112.

[0047] like Figures 4 to 7As shown, the turbulence cavity 212 includes a seventh cavity 2121, an eighth cavity 2122, and a ninth cavity 2123 connected sequentially along the fluid flow direction. The seventh cavity 2121 and the ninth cavity 2123 are both conical cavities, while the eighth cavity 2122 is a cylindrical cavity. The inner diameter of the eighth cavity 2122, the maximum inner diameter of the seventh cavity 2121, and the maximum inner diameter of the ninth cavity 2123 are the same. The inner diameters of the seventh cavity 2121 and the ninth cavity 2123 gradually decrease in diameter away from the eighth cavity 2122. The main flow disturbance section 31 has an outer peripheral surface including a second conical surface 311, a third cylindrical surface 312 and a third conical surface 313 connected sequentially along the fluid flow direction. The second conical surface 311 is spaced apart from the inner wall surface of the seventh cavity 2121. The third cylindrical surface 312 is connected to the inner wall surface of the eighth cavity 2122 by a plurality of connecting blocks 33 spaced apart around the periphery of the main flow disturbance section 31 to form a plurality of flow holes 34. The third conical surface 313 is spaced apart from the inner wall surface of the ninth cavity 2123.

[0048] The main flow-disrupting part 31, the connecting block 33, and the flow-through hole 34 are integrally formed.

[0049] like Figures 4 to 7 As shown, the main spoiler 31 has a hollow structure. The inner hole of the main spoiler 31 includes a tenth cavity 314 and an eleventh cavity 315 connected sequentially along the direction close to the air intake 10. Both the tenth cavity 314 and the eleventh cavity 315 are conical cavities. The inner diameter of the eleventh cavity 315 gradually increases along the direction away from the tenth cavity 314. The inner diameter of the tenth cavity 314 gradually increases along the direction away from the eleventh cavity 315.

[0050] Specifically, the arrangement of the main turbulence section 31, the connecting block 33, and the through-flow hole 34 can change the flow direction of part of the oil-gas mixture, so that the oil-gas mixture not only flows through the inner hole of the main turbulence section 31, but also flows out from the edge of the main turbulence section 31 through the through-flow hole 34, and then reaches the atomization enhancement section 32, so that the atomization enhancement section 32 can turbulently reduce noise of the oil-gas mixture again, which can enhance the noise reduction effect while ensuring that the oil and gas are fully mixed without affecting the atomization effect.

[0051] like Figures 4 to 7 As shown, the outlet cavity 214 is a conical cavity, and the inner diameter of the outlet cavity 214 gradually decreases along the direction close to the jet port 23.

[0052] like Figure 4 and Figure 7 As shown, the atomization enhancement section 32 is a spiral flow channel 320 provided on the inner wall surface of the atomization enhancement cavity 213.

[0053] like Figure 8As shown, the present invention provides a micro-lubrication system, including a pressure control valve 1, a solenoid valve 2, an oil tank 3, an oil pump 4, and an atomizing nozzle 6, wherein the atomizing nozzle 6 is the aforementioned atomizing nozzle; wherein, the compressed air inlet of the oil pump 4 is connected to an air compressor 7 through an air intake pipe, the lubricating oil inlet of the oil pump 4 is connected to the oil tank 3 through a liquid inlet pipe, and the outlet of the oil pump 4 is connected to the atomizing nozzle 6; the pressure control valve 1 and the solenoid valve 2 are sequentially arranged on the air intake pipe.

[0054] Thus, by using the atomizing nozzle 6 of the present invention in the micro-lubrication system, the noise of the micro-lubrication system during operation is effectively reduced, while ensuring the lubrication effect of the micro-lubrication system.

[0055] like Figure 8 As shown, the micro-lubrication system of the present invention also includes a frequency controller 5, one end of which is connected to the air intake pipe, and the other end of which is connected to the oil pump 4.

[0056] Specifically, the fluid flow process in the micro-lubrication system of the present invention is as follows: the compressed air after being compressed by the air compressor 7 reaches the atomizing nozzle 6 through the pressure control valve 1, the solenoid valve 2 and the oil pump 4. The oil in the oil tank 3 drawn by the oil pump 4 also reaches the atomizing nozzle 6 for noise reduction and atomization. The compressed air and the atomized oil and gas will mix with each other and then be sprayed outward from the spray port 23 of the atomizing nozzle 6, ensuring that the atomization effect of the oil and gas is not reduced while achieving noise reduction.

[0057] The compressed air compressed by the air compressor 7 has a pressure of 0.6 MPa to 1.0 MPa.

[0058] The atomizing nozzle of the present invention includes at least the following embodiments:

[0059] Example 1

[0060] The atomizing nozzle of this embodiment includes: an air intake section 10, which includes an air intake chamber 11 and an air intake inlet 12 and an air intake outlet 13 located at opposite ends of the air intake chamber 11 and both communicating with the air intake chamber 11; and a noise reduction section 20, which includes a receiving chamber 21 and an installation opening 22 and a spray nozzle 23 located at opposite ends of the receiving chamber 21 and both communicating with the receiving chamber 21. One end of the air intake section 10 with the air intake outlet 13 is inserted into the receiving chamber 21 through the installation opening 22. A turbulence structure 30 is provided in the receiving chamber 21.

[0061] The air inlet chamber 11 of the atomizing nozzle in this embodiment includes a first chamber 111, a second chamber 112, a third chamber 113, and a fourth chamber 114 connected sequentially along the fluid flow direction. The first chamber 111, the second chamber 112, and the fourth chamber 114 are all cylindrical chambers, and the third chamber 113 is a conical chamber. The inner diameter of the second chamber 112 is larger than the inner diameter of the first chamber 111 and larger than the inner diameter of the fourth chamber 114. The maximum inner diameter of the third chamber 113 is equal to the inner diameter of the second chamber 112, and the minimum inner diameter of the third chamber 113 is equal to the inner diameter of the fourth chamber 114.

[0062] In this embodiment, the air inlet 10 and the silencer 20 of the atomizing nozzle are threaded together.

[0063] The silencing part 20 of the atomizing nozzle in this embodiment has a receiving cavity 21 including a mounting cavity 211, a turbulence cavity 212, an atomization enhancement cavity 213 and an outlet cavity 214 connected sequentially along the fluid flow direction. The air inlet 10 is located in the mounting cavity 211. The turbulence structure 30 includes a main turbulence part 31 located in the turbulence cavity 212 and an atomization enhancement part 32 located in the atomization enhancement cavity 213. The outlet cavity 214 is connected to the injection port 23.

[0064] The mounting cavity 211 of the accommodating cavity 21 of the silencing part 20 of the atomizing nozzle in this embodiment includes a fifth cavity 2111 and a sixth cavity 2112 connected sequentially along the fluid flow direction. The fifth cavity 2111 is a cylindrical cavity, and the sixth cavity 2112 is a conical cavity. The inner diameter of the fifth cavity 2111 is equal to the maximum inner diameter of the sixth cavity 2112, and the inner diameter of the sixth cavity 2112 gradually decreases in the direction away from the fifth cavity 2111. The fifth cavity 2111 is provided with an internal thread. The outer peripheral surface of the air inlet 10 includes a first cylindrical surface 115, a second cylindrical surface 116, and a first conical surface 117 connected sequentially along the fluid flow direction. The outer diameter of the first cylindrical surface 115 is smaller than the outer diameter of the second cylindrical surface 116. The first cylindrical surface 115 is located outside the accommodating cavity 21. The second cylindrical surface 116 is provided with an external thread that is threaded to the internal thread. The first conical surface 117 is inserted into the sixth cavity 2112.

[0065] In this embodiment, the turbulence chamber 212 of the receiving cavity 21 of the silencing part 20 of the atomizing nozzle includes a seventh cavity 2121, an eighth cavity 2122, and a ninth cavity 2123 connected sequentially along the fluid flow direction. The seventh cavity 2121 and the ninth cavity 2123 are both conical cavities, and the eighth cavity 2122 is a cylindrical cavity. The inner diameter of the eighth cavity 2122, the maximum inner diameter of the seventh cavity 2121, and the maximum inner diameter of the ninth cavity 2123 are the same. The inner diameters of the seventh cavity 2121 and the ninth cavity 2123 are both along the direction away from the eighth cavity. The direction of the body 2122 gradually decreases; the outer peripheral surface of the main turbulence part 31 includes a second conical surface 311, a third cylindrical surface 312 and a third conical surface 313 connected sequentially along the fluid flow direction. The second conical surface 311 is spaced apart from the inner wall surface of the seventh cavity 2121. The third cylindrical surface 312 is connected to the inner wall surface of the eighth cavity 2122 by a plurality of connecting blocks 33 spaced apart around the periphery of the main turbulence part 31 to form a plurality of flow holes 34; the third conical surface 313 is spaced apart from the inner wall surface of the ninth cavity 2123.

[0066] In this embodiment, the main turbulence section 31 of the accommodating cavity 21 of the silencing section 20 of the atomizing nozzle has a hollow structure. The inner hole of the main turbulence section 31 includes a tenth cavity 314 and an eleventh cavity 315 connected sequentially along the direction close to the air inlet 10. Both the tenth cavity 314 and the eleventh cavity 315 are conical cavities. The inner diameter of the eleventh cavity 315 gradually increases along the direction away from the tenth cavity 314, and the inner diameter of the tenth cavity 314 gradually increases along the direction away from the eleventh cavity 315.

[0067] In this embodiment, the outlet cavity 214 of the accommodating cavity 21 of the silencing part 20 of the atomizing nozzle is a conical cavity, and the inner diameter of the outlet cavity 214 gradually decreases along the direction close to the spray port 23.

[0068] In this embodiment, the atomization enhancement part 32 of the turbulence structure 30 of the atomizing nozzle is a spiral flow channel 320 provided on the inner wall surface of the atomization enhancement cavity 213.

[0069] The micro-lubrication system of the present invention includes at least the following embodiments:

[0070] Example 2

[0071] The micro-lubrication system of this embodiment includes a pressure control valve 1, a solenoid valve 2, an oil tank 3, an oil pump 4, and an atomizing nozzle 6. The atomizing nozzle 6 is the atomizing nozzle mentioned above. The compressed air inlet of the oil pump 4 is connected to the external environment through an air intake pipe, the lubricating oil inlet of the oil pump 4 is connected to the oil tank 3 through a liquid inlet pipe, and the outlet of the oil pump 4 is connected to the atomizing nozzle 6. The pressure control valve 1 and the solenoid valve 2 are sequentially arranged on the air intake pipe.

[0072] like Figure 9As shown, the atomizing nozzle of the present invention can achieve noise reduction through multiple speed reduction methods. The fluid flow process inside the atomizing nozzle is as follows:

[0073] (1) The oil-gas mixture enters the muffler 20 through the air inlet 10. At this time, the flow path of the oil-gas mixture includes the inner hole of the main turbulence part 31 and the through flow hole 34. Part of it moves in a straight line through the inner hole of the main turbulence part 31 to the atomization enhancement chamber 213, and the other part moves in a non-linear line through the through flow hole 34 to the atomization enhancement chamber 213.

[0074] (2) The two oil-gas mixtures that reach the atomization enhancement chamber 213 will intersect. After the intersection, the flow rate will decrease to achieve the effect of first speed reduction and noise reduction. Since the two oil-gas mixtures reach the atomization enhancement chamber 213 in an intersecting manner, they will flow in all directions in the atomization enhancement chamber 213 to fill the atomization enhancement chamber 213 with oil and gas, thereby making the oil and gas fully mixed.

[0075] (3) Since the inner wall of the atomization enhancement cavity 213 is not flat and smooth, but is provided with a spiral flow channel 320 for turbulence, part of the oil-gas mixture that comes into contact with the spiral flow channel 320 will spiral forward along the spiral flow channel 320 to reduce the flow rate again, so as to achieve the effect of second speed reduction, noise reduction and turbulence.

[0076] (4) Due to the small diameter of the nozzle 23, the flow rate of the oil-gas mixture ejected will be reduced. Moreover, most of the oil-gas mixture in the atomization enhancement chamber 213 cannot be ejected directly through the nozzle 23. Instead, it will change direction and return to the atomization enhancement chamber 213 due to hitting the inner wall of the outlet chamber 214, so as to further reduce the flow rate and achieve the effect of the third speed reduction and noise reduction turbulence.

[0077] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0078] The atomizing nozzle of the present invention includes: an air intake section 10, which includes an air intake chamber 11 and an air intake inlet 12 and an air intake outlet 13 located at opposite ends of the air intake chamber 11 and both communicating with the air intake chamber 11; and a noise reduction section 20, which includes a receiving chamber 21 and an installation opening 22 and a spray port 23 located at opposite ends of the receiving chamber 21 and both communicating with the receiving chamber 21. One end of the air intake section 10 having the air intake outlet 13 is inserted into the receiving chamber 21 through the installation opening 22. A turbulence-inducing structure 30 is provided within the receiving chamber 21. Thus, the atomizing nozzle of the present invention, by providing the air intake section 10, the noise reduction section 20, and the turbulence-inducing structure 30, reduces the flow velocity and noise of the oil-air mixture within the atomizing nozzle while ensuring atomization effect through the turbulence-inducing structure 30. This solves the problem in the prior art where atomizing nozzles in micro-lubrication systems cannot reduce noise without affecting atomization effect.

[0079] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0080] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0081] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0082] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0083] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0084] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An atomizing nozzle, characterized in that, include: The air intake section (10) includes an air intake chamber (11) and an air intake inlet (12) and an air intake outlet (13) located at opposite ends of the air intake chamber (11) and both communicating with the air intake chamber (11). The muffler (20) includes a receiving cavity (21) and an installation opening (22) and a jet port (23) located at opposite ends of the receiving cavity (21) and communicating with the receiving cavity (21). The end of the air intake (10) having the air intake outlet (13) is inserted into the receiving cavity (21) through the installation opening (22). The cavity (21) is provided with a turbulence structure (30). The receiving cavity (21) includes an installation cavity (211), a turbulence cavity (212), an atomization enhancement cavity (213), and an outlet cavity (214) connected sequentially along the fluid flow direction. The air inlet (10) is located in the installation cavity (211). The turbulence structure (30) includes a main turbulence part (31) located in the turbulence cavity (212) and an atomization enhancement part (32) located in the atomization enhancement cavity (213). The outlet cavity (214) is connected to the injection port (23). The turbulence cavity (212) includes a seventh cavity (2121), an eighth cavity (2122), and a ninth cavity (2123) connected sequentially along the fluid flow direction. The seventh cavity (2121) and the ninth cavity (2123) are both conical cavities, and the eighth cavity (2122) is a cylindrical cavity. The inner diameter of the eighth cavity (2122), the maximum inner diameter of the seventh cavity (2121), and the maximum inner diameter of the ninth cavity (2123) are the same. The inner diameter of the seventh cavity (2121) and the inner diameter of the ninth cavity (2123) gradually decrease in the direction away from the eighth cavity (2122). The outer peripheral surface of the main flow disturbance part (31) includes a second conical surface (311), a third cylindrical surface (312), and a third conical surface (313) connected sequentially along the fluid flow direction. The second conical surface (311) is spaced apart from the inner wall surface of the seventh cavity (2121). The third cylindrical surface (312) is connected to the inner wall surface of the eighth cavity (2122) by a plurality of connecting blocks (33) spaced apart around the periphery of the main flow disturbance part (31) to form a plurality of flow holes (34). The third conical surface (313) is spaced apart from the inner wall surface of the ninth cavity (2123). The main spoiler (31) has a hollow structure; The outlet cavity (214) is a conical cavity, and the inner diameter of the outlet cavity (214) gradually decreases along the direction close to the jet port (23); The atomization enhancement part (32) is a spiral flow channel (320) provided on the inner wall surface of the atomization enhancement cavity (213).

2. The atomizing nozzle according to claim 1, characterized in that, The air intake chamber (11) includes a first chamber (111), a second chamber (112), a third chamber (113), and a fourth chamber (114) connected sequentially along the fluid flow direction. The first chamber (111), the second chamber (112), and the fourth chamber (114) are all cylindrical chambers, and the third chamber (113) is a conical chamber. The inner diameter of the second chamber (112) is greater than the inner diameter of the first chamber (111) and greater than the inner diameter of the fourth chamber (114). The maximum inner diameter of the third chamber (113) is equal to the inner diameter of the second chamber (112), and the minimum inner diameter of the third chamber (113) is equal to the inner diameter of the fourth chamber (114).

3. The atomizing nozzle according to claim 1, characterized in that, The air intake (10) and the muffler (20) are threaded together.

4. The atomizing nozzle according to claim 1, characterized in that, The mounting cavity (211) includes a fifth cavity (2111) and a sixth cavity (2112) connected sequentially along the fluid flow direction. The fifth cavity (2111) is a cylindrical cavity, and the sixth cavity (2112) is a conical cavity. The inner diameter of the fifth cavity (2111) is equal to the maximum inner diameter of the sixth cavity (2112), and the inner diameter of the sixth cavity (2112) gradually decreases in the direction away from the fifth cavity (2111). The fifth cavity (2111) is provided with an internal thread. The outer peripheral surface of the air intake (10) includes a first cylindrical surface (115), a second cylindrical surface (116) and a first conical surface (117) connected sequentially along the fluid flow direction. The outer diameter of the first cylindrical surface (115) is smaller than the outer diameter of the second cylindrical surface (116). The first cylindrical surface (115) is located outside the receiving cavity (21). The second cylindrical surface (116) is provided with an external thread that is threaded to the internal thread. The first conical surface (117) is inserted into the sixth cavity (2112).

5. The atomizing nozzle according to claim 1, characterized in that, The inner hole of the main spoiler (31) includes a tenth cavity (314) and an eleventh cavity (315) connected sequentially along the direction close to the air intake (10). Both the tenth cavity (314) and the eleventh cavity (315) are conical cavities. The inner diameter of the eleventh cavity (315) gradually increases along the direction away from the tenth cavity (314), and the inner diameter of the tenth cavity (314) gradually increases along the direction away from the eleventh cavity (315).

6. A micro-lubrication system, characterized in that, The device includes a pressure control valve (1), a solenoid valve (2), an oil tank (3), an oil pump (4), and an atomizing nozzle (6), wherein the atomizing nozzle (6) is the atomizing nozzle according to any one of claims 1 to 5; wherein, the compressed air inlet of the oil pump (4) is connected to an air compressor (7) through an air intake pipe, the lubricating oil inlet of the oil pump (4) is connected to the oil tank (3) through a liquid inlet pipe, and the outlet of the oil pump (4) is connected to the atomizing nozzle (6); the pressure control valve (1) and the solenoid valve (2) are sequentially arranged on the air intake pipe.

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